Question

3 disadvantages of viruses

Answer 1

Harmful effects of microorganisms:

Bacteria: Causes various diseases such as typhoid, diarrhea, and cholera.

Fungi: Causes a large number of diseases in plants and in animals such as rust diseases in plants, fruit rot in apple, red rot in sugar cane and ring worm disease in human beings.

Algae: Algal boom in water (rapid growth of algae) causes poisonous effect after they die, which in turn results in the death of aquatic organisms.

Protozoa: Causes Amoebic dysentery, pyorrhoea and sleeping sickness etc.

Virus: Cause small fox, common cold, influenza, herpes, hepatitis, polio and rabies.

Answer 2

The disadvantages are easy. Viruses can and do cause many serious diseases, some of which can be fatal.