The coronavirus that causes COVID-19 is similar to the one that caused the 2003 SARS outbreak. In 2003, an outbreak of SARS affected people in several countries before ending in 2004. SARS stands for severe acute respiratory syndrome. You can get any of these three authorized or approved vaccines, but the CDC explains that Pfizer and Moderna are preferred in most situations.Ĭoronaviruses are named for their appearance: “corona” means “crown.” The virus’s outer layers are covered with spike proteins that surround them like a crown. It is also important to receive a booster when eligible.
The CDC notes that in most situations the two mRNA vaccines from Pfizer and Moderna are preferred over the Johnson & Johnson vaccine due to a risk of serious adverse events. Two COVID-19 vaccines – Pfizer and Moderna - have been fully approved by the FDA and recommended by the CDC as highly effective in preventing serious disease, hospitalization and death from COVID-19. For updates of coronavirus infections, deaths and vaccinations worldwide, see the Coronavirus COVID-19 Global Cases map developed by the Johns Hopkins Center for Systems Science and Engineering. In addition, it helps to keep up with other safety precautions, such as following testing guidelines, wearing a mask, washing your hands and practicing physical distancing.
It is also important to receive a booster when you are eligible. There are several COVID-19 vaccines recommended by the CDC. More severe cases may require hospitalization, with treatment that might include intravenous medications, supplemental oxygen, assisted ventilation and other supportive measures How do you protect yourself from this? For milder illness, resting at home and taking medicine to reduce fever is often sufficient. Treatment for COVID-19 depends on the severity of the infection. Some people with the coronavirus do not have symptoms at all. Diagnosis by examination alone is difficult since many COVID-19 signs and symptoms can be caused by other illnesses. A person infected with the coronavirus is contagious to others for up to two days before symptoms appear, and they remain contagious to others for 10 to 20 days, depending upon their immune system and the severity of their illness.ĬOVID-19 is diagnosed through a test. Symptoms show up in people within two to 14 days of exposure to the virus. What is the incubation period for COVID-19? Research continues, and more study may reveal how and why the coronavirus evolved to cause pandemic disease. In the past, several infectious disease outbreaks have been traced to viruses originating in birds, pigs, bats and other animals that mutated to become dangerous to humans. SARS-CoV-2 may have originated in an animal and changed (mutated) so it could cause illness in humans. 1, 2019, and the cause was a then-new coronavirus later named SARS-CoV-2. The first case of COVID-19 was reported Dec. This is why mask-wearing, hand hygiene and physical distancing are essential to preventing COVID-19. Larger droplets may fall to the ground in a few seconds, but tiny infectious particles can linger in the air and accumulate in indoor places, especially where many people are gathered and there is poor ventilation. As of now, researchers know that the coronavirus is spread through droplets and virus particles released into the air when an infected person breathes, talks, laughs, sings, coughs or sneezes.
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