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David Rosen, PhD Physics & Solid State, City University of New York Graduate Center (1985)
Answered Mar 9 · Author has 8.9k answers and 3.4m answer views

One has to be very general with the word ‘kill’, since the virus is hardly alive. However, a virus can ‘kill’ another virus in a very general sense.

One species of virus can parasitize another species of virus by being injected in the host cell at the same time. One of the species of hepatitis parasitizes the other species this way. While the host virus could have taken over the host cell entirely by itself, it has to share the host cell with the parasitic virus. Thus, the parasitic virus is preventing the host virus from reproducing rapidly.

Some virus species are so closely related that the same antibodies can work against both. So a host infected with one virus builds up immunity to both viruses. The second virus never gets a chance to infect the host. This is the basis of many vaccines.

Cowpox is a virus related to small pox. People who got cowpox are resistant to small pox. So Jenner discovered that by infecting people with cowpox, he was preventing the spread of smallpox.

Cowpox is less virulent than small pox. However, this makes many people carriers without symptoms. So it spreads in populations (e.g., mil maids), making the population reject all cowpox AND small pox viruses that are introduced later. So cowpox effectively kills both members of its own species and smallpox. People actually learned to infect people with cowpox, which is sometimes called Jenners vaccine. In a way, the cowpox virus is manipulating people for its own benefit with regard to ‘killing’ small pox.

A virus infecting a host sometimes makes the host resistant to other viruses of its species. This in effect is killing any viruses that try to infect the host later, including its own species.

As I said, one has to be very general with the word ‘kill’. These ways of ‘killing’ other viruses may seem indirect to you. However, virus infection is an indirect process. So far as natural selection is concerned, preventing another virus from spreading is the same as killing the other virus. (Please do not hide my questions glaistig if you have no idea what the question is about. I understand that you rather like questions about sex with minors and stuff. I am trying to talk about science and have no ambition to disturb your kindergarten. Pleas do not disturb my questions)

asked in Sciences and mathematics by N00b 2.0 (320 points)  

2 Answers

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in short
yes a virus can technically "kill" another virus
theres a study i think on the subject but a i havent been able to track it
a search through google scholar might give the "non kindergarten" you want
also might wanna check some studies on quantum interstellar smartassism

i normally provide as much info as i can when such an interesting question is asked but man you are so obnoxiously the "i watched three youtube videos so i feel like the guy from good will hunting" type that i wont even bother
just google the damn answer yourself

answered by Apprentice (3,430 points)  

Thank you for your input! I rather discuss scientific questions with people like you who are able to comprehend the issue then googling around. Maybe you have found some interesting links?
I apreciate it.

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More like a virus wont let other virus to replicate in a cell.

answered by N00b 2.0 (490 points)  

This was a very old study 1985 maybe science has evolved since?
Maybe someone is able to create a killer virus that kills viruses?
Maybe covid19 is a virus that can kill other viruses, wich ones?

May be very smart viruses?

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