What are viruses? | Live Science

Viruses are microscopic infectious brokers that comprise genetic materials, both DNA or RNA, and should invade a number to be able to multiply.

Predominantly, viruses are recognized for inflicting illness, as they’ve triggered widespread outbreaks of sickness and demise all through human historical past. Recent examples of virus-driven outbreaks embody the 2014 Ebola outbreak in West Africa, the 2009 swine flu pandemic and the COVID-19 pandemic, which was attributable to a coronavirus first recognized in late 2019. 

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