When was COVID-19 first reported in the US?

January 20, 2020
CDC confirms the first U.S. laboratory-confirmed case of COVID-19 in the U.S. from samples taken on January 18 in Washington state.
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When was COVID-19 first reported?

On this website you can find information and guidance from WHO regarding the current outbreak of coronavirus disease (COVID-19) that was first reported from Wuhan, China, on 31 December 2019.
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Where did the 2019 coronavirus disease outbreak start?

In 2019, a new coronavirus was identified as the cause of a disease outbreak that originated in China.

The virus is now known as the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The disease it causes is called coronavirus disease 2019 (COVID-19).

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When was the Omicron variant of COVID-19 detected in the U.S.?


The B.1.1.529 (Omicron) variant, first detected in November 2021, was responsible for a surge in U.S. infections with SARS-CoV-2, the virus that causes COVID-19, during December 2021–January 2022 (1).

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Where were first COVID-19 infections discovered?

The first known infections from SARS‐CoV‐2 were discovered in Wuhan, China. The original source of viral transmission to humans remains unclear, as does whether the virus became pathogenic before or after the spillover event.
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PBS NewsHour full episode, July 1, 2022



Where was the COVID-19 IHU variant discovered?


The IHU variant, officially known as B.1.640.2, was named by researchers who discovered it in a male patient at the Méditerranée Infection University Hospital Institute (IHU) in France.

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Can you contract COVID-19 through sexual intercourse?

Although there is currently no evidence that the COVID-19 virus transmits through semen or vaginal fluids, it has been detected in the semen of people recovering from COVID-19. We would thus recommend avoiding any close contact, especially very intimate contact like unprotected sex, with someone with active COVID-19 to minimize the risk of transmission
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What is the Omicron variant of COVID-19?

Currently, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has spread worldwide as an Omicron variant. This variant is a heavily mutated virus and designated as a variant of concern by the World Health Organization (WHO).
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Is the COVID-19 Omicron variant more transmissible than previous variants?

The good news was that the new variant caused less severe illness and death than Delta. But it was also highly transmissible—more contagious than any variant that came before it.
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What is the current dominant COVID-19 strain in the US?

June 28, 2022, at 1:17 p.m. CDC: BA.4, BA.5 Now Dominant in U.S. A pair of omicron subvariants that only recently started circulating in the U.S. have taken over as the dominant coronavirus strains, according to data from the Centers for Disease Control and Prevention.
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What is the name of the virus that causes COVID-19?


COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2 and was discovered in December 2019 in Wuhan, China.

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Why are COVID-19 cases rising again?

There are a range of factors that contribute to cases rising and falling — climate, behavior, and mitigation efforts (or lack thereof) among them. Scientists are trying to zero in on what the latest increase in cases says about the durability of protection and the ongoing evolution of the virus.
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What is the source of the coronavirus?

This virus was first detected in Wuhan City, Hubei Province, China. The first infections were linked to a live animal market, but the virus is now spreading from person-to-person.
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How many times can I get COVID-19?

'A long-term pattern' According to some infectious disease researchers, Covid-19 reinfections are likely to become more common as time goes on and different variants continue to circulate—with some people potentially seeing third or fourth reinfections within a year.
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How long does COVID-19 rebound last?

So far there have been no reports of severe illness in those who have experienced covid rebound, and most people seem to recover and stop testing positive around three days later without needing additional covid-19 treatment.
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How long could the COVID-19 virus linger in your body?

But for most infected people, virus levels in the body peak between three and six days after the original infection, and the immune system clears the pathogen within 10 days. The virus shed after this period is generally not infectious.
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Is the Delta variant more contagious than the original strain of COVID-19?


People infected with the Delta variant have roughly 1,000 times more copies of the virus in their respiratory tract than those infected with the original strain of COVID-19. Those who are fully vaccinated are much less likely than those who are unvaccinated to contract and spread the Delta variant, but it does happen.

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Is there a difference in spread between the Omicron and Delta COVID-19 variant?


The Omicron variant spreads more easily than earlier variants of the virus that cause COVID-19, including the Delta variant. CDC expects that anyone with Omicron infection, regardless of vaccination status or whether or not they have symptoms, can spread the virus to others.

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Should I be worried about getting the COVID-19 Omicron variant?


While some have suggested that most people will eventually get the coronavirus, you should do your best to avoid infection with Omicron—there is no justification for deliberately getting infected so you have what you think will be a mild illness that will provide you with more immunity going forward, the doctors say.

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Can the loss of smell and taste be a symptom of the COVID-19 Omicron variant?


Rates of smell and taste loss were 17% for Omicron, compared with 44% for Delta and 50% for Alpha, the investigators found. The study was published recently in the journal Otolaryngology — Head and Neck Surgery.

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Where was the Omicron COVID-19 variant first detected?

On November 24, 2021, South Africa reported the identification of a new COVID-19 variant, B.1.1.529, to the World Health Organization (WHO).

B.1.1. 529 was first detected in specimens collected on November 11, 2021 in Botswana and on November 14, 2021 in South Africa.

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What are some symptoms of the COVID-19 BA.4 and BA.5 Omicron subvariants?

According to experts, most of the symptoms of recent subvariant are the same as other strains of COVID, including a stuffy nose, body aches, sore throat, sneezing, headache, coughing, fatigue and more.
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Can COVID-19 be transmitted through semen or vaginal fluids?

There is currently no evidence that the COVID-19 virus is transmitted through semen or vaginal fluids, but the virus has been detected in the semen of people who have or are recovering from the virus. Further research is needed to determine if the COVID-19 virus could be transmitted sexually.
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How safe is intimacy with a partner during the COVID-19 pandemic?

If both of you are healthy and feeling well, are practicing social distancing and have had no known exposure to anyone with COVID-19, touching, hugging, kissing, and sex are more likely to be safe. Similarly, sharing a bed with a partner who is healthy should not be an issue.

Be aware, though, that the CDC reports that some people may have the virus and not yet have symptoms during the early part of the incubation period (presymptomatic). Additionally, some people never develop obvious symptoms of COVID-19 (asymptomatic). In either case, it’s possible that the virus might spread through physical contact and intimacy.

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Is it safe to have sex during the COVID-19 pandemic?

If you or your partner isn't feeling well or think you might have COVID-19 , don't kiss or have sex with each other until you're both feeling better. Also, if you or your partner is at higher risk of serious illness with COVID-19 due to an existing chronic condition, you might want to avoid sex.
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