Are Viruses Ever Eradicated?

Elena Rostova
Elena Rostova
• • 7 min read

To Date, the World Health Organization (Who) Has Declared Only 2 Diseases Officially Eradicated: Smallpox Caused by Variola Variola Variola Is a Large...

Are Viruses Ever Eradicated?

To date, the World Health Organization (WHO) has declared only 2 diseases officially eradicated: smallpox caused by variola

variola
Variola is a large brick-shaped virus measuring approximately 302 to 350 nanometers by 244 to 270 nm, with a single linear double stranded DNA genome 186 kilobase pairs (kbp) in size and containing a hairpin loop at each end.
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virus (VARV) and rinderpest caused by the rinderpest virus (RPV).

Can you still get COVID-19 after vaccine?

Most people who get COVID-19 are unvaccinated. However, since vaccines are not 100% effective at preventing infection, some people who are fully vaccinated will still get COVID-19. An infection of a fully vaccinated person is referred to as a “breakthrough infection.”

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How long does it take to build up immunity to COVID-19 after receiving the vaccine?

COVID-19 vaccines teach our immune systems how to recognize and fight the virus that causes COVID-19. It typically takes a few weeks after vaccination for the body to build protection (immunity) against the virus that causes COVID-19. That means it is possible a person could still get COVID-19 just after vaccination.

Elena Rostova

Elena Rostova

Lead Health, Wellness & Medical Journalist
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Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.