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  2. Virus latency - Wikipedia

    en.wikipedia.org/wiki/Virus_latency

    Virus latency (or viral latency) is the ability of a pathogenic virus to lie dormant within a cell, denoted as the lysogenic part of the viral life cycle. [1] A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection. Latency is the phase in certain viruses' life cycles in which ...

  3. Smallpox virus retention debate - Wikipedia

    en.wikipedia.org/wiki/Smallpox_virus_retention...

    Destroying the virus now is merely a symbolic act that would slow our progress and could even stop it completely, leaving the world vulnerable.... Destruction of the last securely stored viruses is an irrevocable action that should occur only when the global community has eliminated the threat of smallpox once and for all.

  4. Half alive, half dead and very small: What makes viruses so ...

    www.aol.com/half-alive-half-dead-very-184810066.html

    Viruses are among the biggest threats to humanity, with the current pandemic showing how these pathogens can shut down countries, halt entire industries and cause untold human suffering as they ...

  5. Wasn't polio wiped out? Why it is still a problem in some ...

    www.aol.com/lifestyle/wasnt-polio-wiped-why...

    Polio was eliminated from most parts of the world as part of a decadeslong effort by the World Health Organization and partners to wipe out the disease. Until it is gone from the planet, the virus ...

  6. 5 years since COVID declared public health emergency in US ...

    www.aol.com/5-years-since-covid-declared...

    Friday marks five years since the COVID-19 virus was declared a public health emergency by the United States. But five years later, the virus is still killing thousands, according to experts. "One ...

  7. Virus - Wikipedia

    en.wikipedia.org/wiki/Virus

    A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. [2] [3] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.

  8. Nine viruses the World Health Organisation is concerned about

    www.aol.com/nine-viruses-world-health...

    Infectious disease experts remain vigilant for signs of next major outbreak

  9. Viral evolution - Wikipedia

    en.wikipedia.org/wiki/Viral_evolution

    Waterborne transmission: the virus leaves a host and enters the water, where a new host consumes the water (an example is the poliovirus) [36] Sit-and-wait-transmission: the virus is living outside a host for long periods of time (an example is the smallpox virus) [36] Virulence, or the harm that the virus does on its host, depends on various ...