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14y ago

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How do viruses spead?

by not washing your hands and being to touchy There are two vectors (means of spreading) viruses: air and surface. Airborne viruses usually are able to survive without a host for longer periods, and are passed by sneezing, coughing, and breathing. Surfaceborne viruses are passed by direct contact. These viruses must come into contact with the mucus membranes of a new host to survive for very long. While the lifespan of a hostless virus is usually short, there are some exceptions. For instance, HIV survives outside the host for only several seconds, however, most strains of hepatitis can survive on a surface without a host for two weeks.


Infer how some viruses might can be helpful?

viruses can be helpful because, some viruses can be used for cures. for example, USA. researcher suggest that adeno-associated viruses type 2 can Promises to be a breakthrough in cancer therapy


Are bacteria larger than viruses?

no bacteria is larger than viruses


What is the name of person who studies viruses?

a virologist studies viruses


Which is difference between bacteria and viruses that shows that bacteria are living organisms and viruses not?

Bacteria are able to reproduce on their own while viruses need a host to "hijack" so they can reproduce. Bacteria have metabolisms, catabolic and anabolic biochemical reactions going on in their cells all the time. Viruses do not. Bacteria can grow in size to a certain extent while viruses do not change in this regard. The definition of living things classify bacteria as a living thing, while viruses are not.