Picture of a Corona virus


Viruses are much smaller than bacteria. Viruses need their host cell to replicate, 

Carriers are available eg Hepatitis, where the carrier shows no symptoms of the viral infections. Some viral infections cannot be cured and the host remains a carrier, 

Viruses and bacteria can live outside of the human body for many hours or days. 

Eg Countertops, clothes, door handles

 Antibiotics cannot kill viruses.

What is the difference between











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