Coronavirus refers to a group of related viruses that can infect humans and animals, primarily affecting the respiratory system. These viruses are named for the crown-like (“corona”) spikes on their surface. In humans, coronaviruses can cause a range of illnesses, from mild conditions such as the common cold to more severe diseases such as COVID-19, SARS, and MERS. They spread mainly through respiratory droplets and close contact, and some strains can lead to serious complications, especially in vulnerable populations..
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