What percentage of the world has had COVID 2021?

Up to Nov 14, 2021, an estimated 3.8 billion total COVID-19 infections and reinfections occurred, with about 3.4 billion people (43.9% of the world's population) infected at least once. The total percentage of the population infected at least once ranged from 20% in 39 countries to more than 70% in 40 countries.
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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 percentage of Americans had COVID-19 as of April 2022?

April 26, 2022 — Nearly six of every 10 Americans has already had COVID-19, a rate of infection that increased dramatically from December to February, the CDC says.
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What are the current statistics about long COVID?

Data for Long COVID

13.3% at one month or longer after infection
2.5% at three months or longer, based on self-reporting
More than 30% at 6 months among patients who were hospitalized

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Can you get COVID-19 from kissing someone?

It's well known that the coronavirus infects the body's airways and other parts of the body, but new research indicates that the virus also infects mouth cells. You don't want to kiss someone who's got COVID.
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How long after exposure do COVID-19 symptoms appear?

People with COVID-19 have had a wide range of symptoms reported – ranging from mild symptoms to severe illness. Symptoms may appear 2-14 days after exposure to the virus.
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How long is COVID-19 contagious?


Here's what we know from studies of prior variants, including Delta: On average, people can begin spreading the virus 2-3 days before their symptoms begin, but infectiousness peaks 1 day before their symptoms begin. On average, people can continue to spread the virus another 8 days after their symptoms began.

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Is there such thing as long-term COVID-19?

Long COVID—or post-COVID conditions—is a wide range of new, returning or ongoing health problems people may experience more than four weeks after being first infected with SARS-CoV-2.
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What are some of the lingering effects of COVID-19?


If you contracted COVID-19, you might still be experiencing this phenomenon long after the acute infection has passed. Long COVID presents as persistent symptoms ranging from mild headaches and general malaise to more serious problems such as extreme fatigue, difficulty concentrating and shortness of breath.

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What are Post-COVID conditions or Long COVID?

Post-COVID conditions (PCC, or Long COVID) are a wide range of new, returning, or ongoing health problems people can experience four or more weeks after first being infected with the virus that causes COVID-19.
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What is the cumulative burden of COVID-19?


The cumulative burden of COVID-19 is an estimate of the number of people who may have been infected, sick, hospitalized, or died as a result of a COVID-19 infection in the United States.

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What is the percentage of people who need to be immune against COVID-19 in order to achieve herd immunity?

We are still learning about immunity to COVID-19. Most people who are infected with COVID-19 develop an immune response within the first few weeks, but we don’t know how strong or lasting that immune response is, or how it differs for different people. There have also been reports of people infected with COVID-19 for a second time.

Until we better understand COVID-19 immunity, it will not be possible to know how much of a population is immune and how long that immunity last for, let alone make future predictions. These challenges should preclude any plans that try to increase immunity within a population by allowing people to get infected.

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What does the mortality rate or death rate mean in the context of the COVID-19 pandemic?

The mortality rate is the number of people who died due to COVID-19 divided by the total number of people in the population. Since this is an ongoing outbreak, the mortality rate can change daily.
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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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What is one of the ways COVID-19 can spread from person-to-person?

When an infected person coughs, sneezes, or talks, droplets or tiny particles called aerosols carry the virus into the air from their nose or mouth. Anyone who is within 6 feet of that person can breathe it into their lungs.
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How long do lingering symptoms last after COVID-19?


Symptoms. People with post-COVID conditions (or long COVID) may experience many symptoms. People with post-COVID conditions can have a wide range of symptoms that can last more than four weeks or even months after infection. Sometimes the symptoms can even go away or come back again.

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Are long-term side effects possible with the COVID-19 vaccine?


Benefits of Vaccination Outweigh the Risks Serious side effects that could cause a long-term health problem are extremely unusual following any vaccination, including COVID-19 vaccination.

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How long does it take for memory to recover from COVID-19?


Recovery in memory within six months and improvement in attention within nine months of COVID infection was seen in this study, suggesting that some cognitive impairments with COVD, even if widespread, are potentially reversible.

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Can mild cases of COVID-19 cause long COVID-19?


Advancing public health But even a mild SARS-CoV-2 infection can cause long COVID. And with the high transmissibility of the Omicron variant—which often results in milder disease outcomes—many patients may be concerned about developing long COVID.

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What are some of the first symptoms of COVID-19?

Early symptoms reported by some people include fatigue, headache, sore throat or fever. Others experience a loss of smell or taste. COVID-19 can cause symptoms that are mild at first, but then become more intense over five to seven days, with worsening cough and shortness of breath.
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What are some of the most common presenting symptoms of COVID-19?


Initial presentation — Among patients with symptomatic COVID-19, cough, myalgias, and headache are the most commonly reported symptoms. Other features, including diarrhea, sore throat, and smell or taste abnormalities, are also well described (table 3).

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What is a pandemic in the context of COVID-19?

A pandemic is a disease outbreak that spreads across countries or continents. It affects more people and takes more lives than an epidemic. The World Health Organization (WHO) declared COVID-19 to be a pandemic when it became clear that the illness was severe and that it was spreading quickly over a wide area.
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What is the case fatality ratio (CFR)?

Calculating CFR

Case fatality ratio (CFR) is the proportion of individuals diagnosed with a disease who die from that disease and is therefore a measure of severity among detected cases:

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Is COVID-19 the worst pandemic the world has ever seen?


SARS-CoV-2 has officially claimed 5 million lives, but credible estimates place the pandemic's true death toll closer to 17 million. Either count secures COVID-19's position on our list of history's deadliest plagues.

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