There are steps you can take to help stop the spread of COVID-19, including getting vaccinated. In December 2020, the US launched a national vaccination campaign. The novel coronavirus ( SARS-CoV-2) that causes COVID-19 first emerged in the Chinese city of Wuhan in 2019 and was declared a pandemic by the World Health Organization (WHO). They are closely monitored by public health officials. Human coronaviruses were first identified in the mid-1960s. In humans, the viruses can cause mild respiratory infections, like the common cold, but can lead to serious illnesses, like pneumonia.Ĭoronaviruses are named for the crown-like spikes on their surface. They often circulate among camels, cats, and bats, and can sometimes evolve and infect people. Coronaviruses are a large group of viruses that cause diseases in animals and humans.
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