Learn about causes, complications, and more. Learn about the causes, treatments, and how to prevent it. Normal stools can vary in shades of brown, mostly due to your diet. Find out the most likely reason for your stomach pain. Our website services, content, and products are for informational purposes only. Non-respiratory presentations of COVID-19, a clinical review. diarrhea vomiting abdominal pain and loss of appetite Other symptoms Still, the most common COVID symptoms kids experience, overall, are quite similar to those of adults, and include: fever. But there are treatments you can try at home that may help you feel better: But if you start to experience bloody diarrhea, see a doctor. In the December 17, 2021, issue of Morbidity and Mortality Weekly Report, the Centers for Disease Control and Prevention (CDC) released an analysis of the first 43 cases of the Omicron variant that were reported in the U.S. That research showed that the most commonly reported symptoms among those patients were cough, fatigue, and congestion or runny nose. Irritable bowel syndrome (IBS) is a common disorder that affects the stomach and intestines, also called the gastrointestinal tract. Always talk to your doctor for professional medical advice. A 2021 meta-analysis found that after having COVID-19, 3.19% of people experienced persistent vomiting while 4.12% had prolonged diarrhea. Sofonea MT, Roquebert B, Foulongne V, et al. True to form, nafamostat significantly reduced the amount of virus present in the Intestine Chip 24 hours after infection, though it did not restore the integrity of the connections between the cells. food sensitivities. The expert says that even though double-vaccinated people are also coming forward with complaints of abdominal issues, these symptoms are not adverse and not of much concern. "But with Omicron, patients with gastrointestinal problems are flaring up and having more symptoms." Symptoms: Admire said these symptoms can often show up: Nausea. What else causes gurgling stomach noises and diarrhea? Recent clusters of thatillness in New Brunswick affectedschools, child-care centres, and long-term care homes, while hundreds of people in B.C., Alberta, Saskatchewan and Ontario fell ill after eating raw oysters. Diarrhea was the most common, affecting 29.8%, followed by nausea and vomiting (22%) and abdominal pain (14.9%). We were surprised that remdesivir displayed such clear toxicity to the vascular tissue in the Intestine Chip, said co-first author Girija Goyal, a senior research scientist at the Wyss Institute. Occasionally there can be nausea and diarrhea, Gulick said. If your diarrhea persists for more than a couple of days, its a good idea to seek medical attention. Keep reading to learn more about the connection between COVID-19 and gastrointestinal symptoms like diarrhea and stomach gurgling. COVID‐19 induces gastrointestinal symptoms and affects patients prognosis. A gentle self-massage can help ease pressure and cramping associated with gas and may even help relieve constipation. These infections cause inflammation in the gastrointestinal tract which decreases the body's ability to absorb and digest food, explains Barajas. If you've felt green around the gills recently, or heard more tales than usual about stomach upsets, you might have wondered if Omicron or its subvariant, BA.2, are causing an increase in gastrointestinal issues. Healthline Media does not provide medical advice, diagnosis, or treatment. Dr. Sumon Chakrabarti, an infectious diseases specialist in Mississauga, Ont., said he's recently seen a higher proportion of COVID-19 patients whose primary symptoms are gastrointestinal. Reuters. We may earn commission from links on this page, but we only recommend products we back. By Laura Hensley In the world of infectious disease and epidemiology, mild doesnt always mean sniffles; the marker of a mild disease is whether or not people end up in the hospital. Menni C, et al. Some doctors will not see people with a fever or other, mild COVID-19 symptoms. The bigger picture: These symptoms are a sign that the omicron variants symptoms are unpredictable. While it may. Fever or chills Cough Shortness of breath or difficulty breathing Fatigue Muscle or body aches Headache New loss of taste or smell Sore throat Congestion or runny nose Nausea or vomiting Diarrhea. If you test positive or dont get tested, stay home for at least 5 days. Any medical information published on this website is not intended as a substitute for informed medical advice and you should not take any action before consulting with a healthcare professional. Symptoms of the Omicron variant typically mimic cold symptoms, including congestion, coughing, and fatigue. The Zoe study pointed out that some people who reported gastrointestinal symptoms also tested negative for COVID-19, suggesting they had a stomach bug like norovirus or gastroenteritis. GI symptoms have been previously reported in clinical trials of remdesivir, and this model now gives us a window into the underlying causes of those symptoms. In the winter, when we experience cold and flu season, it can be hard to differentiate a COVID infection from other viruses. FDA Is Considering Annual COVID Vaccines. COVID-19 is associated with clinically significant weight loss and risk of malnutrition, independent of hospitalisation: Apost-hocanalysis of a prospective cohort study. Happiness is not a destination Happiness is the way, Expanding our understanding of gut feelings, Gen Z, millennials need to be prepared to fight for change, Potential fixes for COVID-related GI issues, DNA shows poorly understood empire was multiethnic with strong female leadership. Pre-treating the Intestine Chip with nafamostat prior to the introduction of the virus and PBMCs did reduce the secretion of some cytokines, but it did not mitigate the blood vessel damage, nor did it suppress the inflammatory response completely. oysters linked to hundreds of norovirus cases, says Canada's public health agency, Schools, nursing homes contend with stomach virus outbreaks, Influx of long COVID patients might put further strain on health-care system: report, Why COVID headaches can be hard to shake and when you should worry, Some clinicians have also reported seeing more COVID-19 patients, recent pre-print study by American researchers, CBC's Journalistic Standards and Practices. A subvariant of Omicron . Fever or chills Cough Shortness of breath or difficulty breathing Fatigue Muscle or body aches Headache New loss of taste or smell Sore throat Congestion or runny nose Nausea or vomiting Diarrhea. (2022). And in January 2022, the Omicron variant overtook Delta to become the global dominant COVID-19 strain, according to the WHO. One reason why people consider COVID-19 to be a respiratory disease may be because . Wahab SF, et al. The most common symptoms included: Abdominal pain: 7.5% Constipation: 6.8% Diarrhea: 4.1% Vomiting: 4.1% Similarly, in a study published in April, researchers found that patients with long COVID were experiencing conditions known as disorders of gut brain interaction . It's important to keep them hydrated, and over-the-counter medications may help control vomiting. To get the most reliable results, a person should consider retesting a few days after a negative test. While the research continues to evolve, so far, it shows that vaccinated people are less likely to go on and have long COVID. Can COVID-19 causediarrhea and loud stomach gurgling noises? According to a study of cases of patients who have been detected with the Omicron variant, some of the most unusual symptoms of this variant can be seen in the stomach. What should you do if you happen to develop it while you have the virus? I've gotten used to a lot of various pains since the surgery, such as intestinal pains caused by constipation, healing pains, and jittery nerve pains. Some people go on to never experience respiratory symptoms. Most of these symptoms may be mistaken for seasonal illness or the flu but the quickest way to determine . Aside from COVID-19, there's another reason why more Canadians might be experiencing some unpleasant intestinal symptoms right now. What you need to know about stomach flu (gastroenteritis), Symptoms and treatment of a 24-hour stomach bug. +(91)-9821210096 | paula deen meatloaf with brown gravy. Thank you, {{form.email}}, for signing up. Wong SH, et al. (2022). Gulick says people who are over 65 years old, those who are immunocompromised, and those with comorbidities such as obesity, diabetes, and hypertension, can still get seriously ill. Health experts first reported that severe fatigue was quickly becoming a hallmark sign of an Omicron infection. However, a 2020 case report described the stomach pain as non-specific.. (2022). There is still a lot to know about stomach pain and long COVID. However, as the COVID-19 pandemic rapidly evolves and the scientific communitys understanding of the novel coronavirus develops, some of the information may have changed since it was last updated. It often occurs alongside diarrhea. (2022). It's important that people experiencing ongoing gastro symptoms speak to a doctor for diagnosis and treatment, he said. By clicking Accept All Cookies, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. There is limited but growing evidence of people experiencing lasting gastrointestinal issues, months after a COVID-19 infection, including indigestion and post-infectious irritable bowel syndrome (IBS). There has been a "sharp increase" in gastrointestinal symptoms such as diarrhea, stomach pains and feeling sick among people infected with the Omicron variant of Covid-19, as per a team of . This research was supported by the Defense Advanced Research Projects Agency (DARPA) under Cooperative Agreement HR0011-20-2-0-040, the National Institutes of Health (UH3-HL141797), Bill and Melinda Gates Foundation, and Wyss Institute for Biologically Inspired Engineering at Harvard University. Even now, for people who haven't gotten vaccinated, they can still benefit from vaccination.. "It's not surprising to me that we're starting to see things like irritable bowel and other types of conditions linked to COVID, that have probably been linked to other infections in the past, but we just haven't studied [those infections] as extensively as we have with COVID," Kaplan said. 2022. doi:10.1101/2021.12.31.21268583, Arnold CG, Monte AA, Littlefield K, Vest A, Palmer BE. Gastroenteritis can be caused by viral, bacterial or parasitic infections, but is commonly caused by the norovirus. 1 likes, 0 comments - Jimmie Chevrier (@shortbustohell) on Instagram: """They've had diarrhea all morning in addition to abdominal cramps. (2020). Digestive symptoms sometimes develop before a fever and respiratory symptoms. Its important to seek immediate medical attention if you develop emergency symptoms, like trouble breathing or persistent chest pain. Chakrabarti's hypothesis is backed up by data from the U.K.-based ZOE COVID Symptom Study App, through which millions of people have reported their symptoms during the pandemic. The medical name for a gurgling stomach or intestinal noise is borborygmus (plural: borborygmi). Case report: Atypical manifestations of COVID-19 in general practice: A case of gastrointestinal symptoms. And while fever is a common symptom of COVID-19, people with stomach pain often do not have a fever. The real name for the stomach flu is called gastroenteritis. But some people report abdominal pain. Read our, Experts Explain How COVID-19 May Be Causing New Cases of Diabetes, Too Soon to Tell If Omicron Will Create More Long COVID, What You Need to Know About the XBB.1.5 'Kraken' Variant. A new loss of smell or taste without a stuffy nose is a common early symptom of COVID-19. What does COVID-19 stomach pain feel like? While cases associated with this variant are on the rise worldwide, experts have warned that the symptoms of Omicron can be very different from all the previous strains which were caused by the other variants. That study compared the COVID-19 symptoms that people recorded during a week in Octoberbefore the Omicron variant was known to be in Londonand a week in Decemberafter the variant was confirmed to be in London. That would still be considered a mild infection it could be a more significant illness, but just not severe enough to end up in the hospital.. ALSO READ: Recovered from Omicron? In very rare cases, shortness of breath can happen after getting the COVID-19 vaccine. Current reports indicate that these symptoms often appear early and may be relatively common. Still, youre more likely to also experience symptoms such as fever, cough, and shortness of breath. Ashley Abramson is a freelance writer based in Milwaukee, WI. They infected the Intestine Chip with a coronavirus called NL63 that causes the common cold and, like SARS-CoV-2, uses the ACE2 receptor to enter cells, and then tested the effects of various drugs that have been proposed for treating SARS-CoV-2 infection. Omicron BA.2 was the dominant strain of COVID-19 in the second wave pandemic in India. We avoid using tertiary references. Can you have COVID-19 stomach pain without respiratory symptoms? While many of the previous strains of COVID-19 have all presented with classic symptoms of cough, congestion, body aches, and even loss of taste, Anecdotal reports are surfacing that some people are developing tinnitus days after receiving one of the COVID vaccines. Eating food infected with pathogens can lead to diarrhea, nausea, vomiting, and abdominal pain. Review article: Gastrointestinal features in COVID‐19 and the possibility of faecal transmission. This new preclinical model, which could be used to identify drugs that can target GI symptoms associated with both the common cold and SARS-CoV-2 virus infections in the future, is described in Frontiers in Pharmacology. Omicron variant of COVID-19, or BA.1 was first identified in South Africa in November 2021. Can You Get Omicron and Delta COVID-19 Variants at the Same Time? It's safer to generate immunity from a vaccine, however than from getting an infection. Most COVID-19 stomach pain is self-limiting, which means it goes away without prescription medications. Diarrhea, vomiting and abdominal pain have been recognized as common symptoms of COVID-19 since early in the pandemic, while nausea, reflux, heartburn, loss of appetite and weight loss are also recognized as potential symptoms. Delavari A, et al. Omicron symptoms can look like flu and cold symptoms and cause headache, sore throat and runny nose. It's also important to keep in mind that with every new variant, there's a lag between infections and hospitalizations, so a variant can initially seem less concerning than it actually may be. Antibodies From Vaccines vs. Antibodies From Natural Infection. To try to cure the infection, the researchers then administered nafamostat, a short-acting anticoagulant drug, into the channel lined with blood vessel cells. Diarrhea was the most common, affecting 29.8%, followed by nausea and vomiting (22%) and abdominal pain (14.9%). Whitaker M, et al. Up to 34% experience diarrhea, lasting an average of 5 days. According to a 2021 paper, SARS-CoV-2 may attack the GI tract, triggering digestive issues in some people. In an April 2022 study, researchers found the five most commonly reported symptoms of people with COVID-19 caused by Omicron were: Many other symptoms have also been reported, including: Gastrointestinal symptoms like diarrhea arent uncommon in people with COVID-19. An April 2022 study published in Signal Transduction and Targeted Therapy found that Omicron has more than 30 mutations in the spike genethe part of the virus that allows it to penetrate your cells and infect youand it's likely more transmissible than the original SARS-CoV-2. And as is well known at this stage of the pandemic hand-washing is an important precaution for preventing the spread of illness. Gastrointestinal symptoms are associated with a lower risk of hospitalization and mortality and outcomes in COVID-19. Theres no scientific evidence that drinking urine can protect you from COVID-19, and it may hurt you. Vaccination hesitancy and postacute sequelae of SARS-CoV-2: Is it time to reconsider? Nafamostat pre-treatment did, however, increase the production of an antimicrobial protein called Lipocalin-2, implying that this type of protein could play a role in the cellular response to coronavirus infections. Stomach bugs, like norovirus, are increasingly circulating as life returns to normal, Chakrabarti said, with children often becominginfected with gastro-type illnesses at school, then infecting their families. Weight loss was more common among people who were hospitalized. What You Need to Know About the Updated COVID-19 Boosters. "Whenever there is a new variant, people say cases are going up but not hospitalizations, but we seem to forget that there's a lag of several weeks before we know if these cases will result in more hospitalizations and deaths," Dr. Liu said. Cold-like symptoms - including a runny nose, sore throat and persistent sneezing - became more common, along with a headache and cough, particularly in people who had been vaccinated. It was in the lung. Groff A, et al. Cookie Policy. If your stools are pale or, Diverticulitis supportive therapy includes things you can do at home, such as using a heating pad or OTC pain relievers or following a liquid or low, Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. And if you're already fully vaccinated, getting booster shots can provide further protection. You might feel like you have a stomach bug or like you ate some bad food. Symptoms of loss of taste and smell are related to COVID, so if you develop symptoms and are at high-risk, then definitely get tested since there is now treatment for early disease, Gulick said. The CDC says COVID-19 may cause the following symptoms: To protect yourself and others from severe sickness from any COVID-19 strain, Dr. Liu said the best thing to do is get fully vaccinated. Amid a steady surge in Omicron variant cases, experts have said that this variant targets the stomach more than the lungs. However, it has been reported as a symptom of COVID-19 in case studies. The most effective way to distinguish food poisoning from COVID-19 is to take a test for SARS-CoV-2. In a 2020 study, researchers analyzed 55,924 confirmed COVID-19 cases and found that respiratory symptoms are more likely to appear earlier in the disease. Dry Eye and COVID-19: How the 2 Conditions Are Connected, According to Experts. Our experts continually monitor the health and wellness space, and we update our articles when new information becomes available. COVID-19 is a respiratory disease caused by an infection . Respiratory infections in general may cause people to produce more phlegm as they cough; swallowing that phlegm can then also irritate and upset the stomach. Abdominal pain. The symptoms may include vomiting, diarrhea, or stomach pain. Digestive involvement in the long-COVID syndrome. But, he adds, it's not that Omicron isnecessarily causing more GI issues, but rather, that it'snow easier to detect COVID-19 in those patients than it was earlier in the pandemic. Taking a COVID-19 test can help people find out what is causing their symptoms. What Causes Dry Heaving and How Is It Treated? They may treat people virtually and admit them to the hospital if the symptoms worsen. Viral Immunology. Babcock says that new data shows that people who were vaccinated and got infected with a previous variant of the virus had a much lower risk of long COVID than unvaccinated people who got infected. Having established that their Intestine Chip could successfully model interactions between viruses, drugs, and the gut, the team tested a variety of other drugs that are taken orally including toremifene, nelfinavir, clofazimine, and fenofibrate, all of which have been shown to inhibit infection by SARS-CoV-2 and other viruses in vitro. "Do not pass off abdominal pain, nausea and loss of appetite as a normal flu, if you have symptoms, isolate yourself. (2021). Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps Suspected source: Roasted corn carbonate dish, served with a raw COVID-19 can cause similar symptoms to food poisoning, including abdominal discomfort, nausea, and vomiting. Wayfair Way Day Deals How to Spot Phishing Scams Best Sleep Trackers Apple's India Ambitions Top Meal Delivery Services, Tested Best Savings Accounts Go Solar With Top Installers Best Internet . However, each persons symptoms can progress differently. If you believe that you may have COVID-19, the Centers for Disease Control and Prevention (CDC) recommends isolating yourself from others. Symptoms if mild might not be of concern," says Dr Goel. (2022). One reason why people consider COVID-19 to be a respiratory disease may be because respiratory symptoms appear earlier. In a 2022 study with 1,672 people hospitalized with COVID-19, researchers found that 40.7% of them developed gastrointestinal symptoms. Dr. Gil Kaplan, a gastroenterologist and epidemiologist at the University of Calgary, saidit's also possible some people may have had existing, but undiagnosed, GI issues, which were exacerbated by COVID-19. Last medically reviewed on January 17, 2022. The variant not only spreads more efficiently than delta variant, causing mostly mild disease, but is also said to be capable of reinfecting people who have had Covid infection previously or even double vaccinated. We're not seeing major shifts in the symptoms. Diarrhea, vomiting and abdominal pain have been recognized as common symptoms of COVID-19 since early in the pandemic, while nausea, reflux, heartburn, loss of appetite and weight loss are also. Sign up for daily emails to get the latest Harvardnews. Verywell Health's content is for informational and educational purposes only. On the other hand, food poisoning is more likely to cause severe gastrointestinal symptoms such as projectile vomiting and bloody stools. How Many Steps Do I Need a Day for Weight Loss? What to Know About Omicron BA.5 Reinfections, Omicron estimated to be 95.4% of coronavirus variants in U.S. - CDC, From Delta to Omicron: Analysing the SARS-CoV-2 epidemic in France using variant-specific screening tests (September 1 to December 18, 2021). Does Omicron Cause Stomach Pain? * Avoid eating outside food and even if you are vaccinated, maintain all covid safety protocol. A mild infection then could still leave you with a high fever, chills and muscle aches, and kind of knock you out for a few days, she said. The research team introduced the coronavirus NL63 into the channel lined with intestinal cells and observed what happened. If the coronavirus enters your gastrointestinal tract, it can cause gastrointestinal symptoms like diarrhea. Studies estimate that 35.7% to 54.5% of people with COVID-19 have traces of the virus in stool samples, suggesting that it reached their gastrointestinal tract. Researchers found that, in addition to upper respiratory symptoms, a significant number of those sick with the new virus also suffered from loss of appetite, nausea, vomiting and . Learn more here. Symptoms: Admire said these symptoms can often show up: Flashback: Gastrointestinal symptoms have been mentioned as possible symptoms before. It is a priority for CBC to create products that are accessible to all in Canada including people with visual, hearing, motor and cognitive challenges. Home; Service. To gather more information, the CDC is closely monitoring real-world vaccine effectiveness and breakthrough infections, as well as Omicron's impact on disease incidence, severity, and vaccine breakthrough. (2022). Laura Hensley is an award-winning lifestyle journalist who has worked in some of the largest newsrooms in Canada. When we let our guards down and skip out on booster appointments or throw away masks, we are giving the virus more opportunities to spread. It might even appear before other, more common symptoms or instead of them. They found that more PBMCs attached themselves to the blood vessel wall in chips that had been infected with NL63 than in uninfected chips, and that the blood vessel cells were damaged as a result. Stomach cramps and pain Occasional muscle aches or headache Low-grade fever Depending on the cause, viral gastroenteritis symptoms may appear within 1-3 days after you're infected and can range from mild to severe. Some of these can mimic the stomach flu or other gastrointestinal (GI) conditions, making it hard to identify the source. Stay hydrated by drinking water or an electrolyte-replacing beverage. Not Just Lungs, Omicron Targets Stomach Too: Diarrhoea And Other Symptoms To Look Out For Some of the symptoms that one may experience in the stomach are - abdominal pain, nausea, bloating,. Runny nose, headache, fatigue, sneezing, and sore throat were the top five symptoms among people in the UK who recorded a positive COVID-19 test in the past few weeks. Royal scandal alert: Prince Harry left out as Meghan Markle signs deal with WME talent agency, Graft case: Court stays IAS officers arrest for two days, Chandigarh: Ninth auction finds no takers for 22 liquor vends, Coming up, play sections for kids at 10 vaccine centres in Chandigarh, Intruder enters students room: PU girls hostel warden removed, Speeding car mows down 8-year-old playing near road in Panchkula, Chandigarh Police nab four proclaimed offenders, GMSH-16 chemist evicted over failure to pay rent, Dera Bassi septic tank deaths: Factory GM, director denied anticipatory bail. (2022). Underactive Thyroid: 5 Signs to Look Out For, Asthma Management: 7 Fool-Proof Tricks To Reduce Asthma Symptoms, Neck Pain Might Indicate An Impending Heart Attack: Symptoms You Should Be Aware Of. But if you develop stomach pain and other gastrointestinal issues, dont automatically assume that its COVID-19, says Thomas Russo, M.D., professor and chief of infectious disease at the University at Buffalo in New York. In a 2022 study, about a quarter of people with the Omicron variant self-reported skipping meals. "We know that people infected with Omicron can have the full spectrum of disease, from asymptomatic infection to mild disease, all the way to severe disease to death," Van Kerkhove said during a question-and-answer session, per CNBC. COVID or gastrointestinal illness? This article is accurate as of press time. Hearst Magazine Media, Inc. All Rights Reserved. Korin Miller is a freelance writer specializing in general wellness, sexual health and relationships, and lifestyle trends, with work appearing in Mens Health, Womens Health, Self, Glamour, and more. Studies report it in anywhere from 2% to 50% of people with COVID-19. While Omicron symptoms are often milder than symptoms of other variants, they can vary widely, and more research is needed to determine whether Omicron can cause more serious illness than other variants. Our website is not intended to be a substitute for professional medical advice, diagnosis, or treatment. We discuss how to avoid catching this flu and when to see a. Credit: Wyss Institute at Harvard University, By Lindsay Brownell Wyss Institute Communications. Bacterial Vaginosis During Pregnancy Can Lead To Premature Delivery: What Can You Do? (2022). What theyre saying: With Delta, the upper respiratory symptoms were very severe. All rights reserved. This includes why people get the symptoms they do and what causes some people to get very ill while others develop few or no symptoms. During the COVID-19 pandemic, stretched medical services worldwide have made it more difficult to receive medical care. Do Bivalent Boosters Protect Against XBB.1.5? Gastrointestinal manifestations of COVID-19: A review of what we know. And that could cause abdominal pain.. (2020). (2020). Researchers have identified certain foods you can. Both a stomach virus and flu can cause digestive symptoms, such as diarrhea or vomiting. Diarrhea is a common symptom of COVID-19. Wang Y, et al. Experts continue to learn more about the Omicron variant and its specific risks (including any new symptoms, especially in unvaccinated people, and how much protection the vaccines provide). Fatigue/tiredness All rights reserved. However, a 2020 case report described the stomach pain as. Thank you for using JustAnswer. For comparison, at least 11% of people developed diarrhea in half of the studies. What Are COVID-19 Signs and Symptoms in People of All Ages? Diarrhea isn't uncommon in people with COVID-19. Gastrointestinal implications in COVID-19. Seek immediate medical care if this happens to you. The SARS-CoV-2 virus can cause a wide range of symptoms that can vary among individuals. Babcock acknowledges that there is social fatigue with the pandemic and its safety precautionsbut says they remain important. Omicron vs. Delta: How the 2 COVID-19 Variants Compare, Omicron Infection Timeline: When Symptoms Start and How Long They Last, Omicron Variant's Incubation Period Is About 3 DaysWhat That Means, Omicron BA.4 and BA.5 Symptoms: What To Know, The First Omicron Case Has Been Detected in the USHere's What to Know About the Newest COVID Variant, Experts Explain Why Its a Bad Idea to Purposely Get COVID Since Omicron Seems Milder, The COVID-19 Delta Variant: Everything We Know About It, What You Should Know About BA.2, a SARS-CoV-2 Omicron Variant. ncbi.nlm.nih.gov/pmc/articles/PMC7513760/, ncbi.nlm.nih.gov/pmc/articles/PMC9177081/, ncbi.nlm.nih.gov/pmc/articles/PMC7354040/, ncbi.nlm.nih.gov/pmc/articles/PMC7162568/, academic.oup.com/bjs/article/107/7/e186/6094066, onlinelibrary.wiley.com/doi/full/10.1111/jgh.15047.

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