Question

Suggest any three methods of controlling bacteria and HIV.

Answer 1

Bacteria:

1. Bacteria are unicellular organisms between 0.0005 to 0.005 mm long.
2. However, they occur together in vast numbers, either as separate cells or clumped together.
3. They are found everywhere, in air, soil, and water, on every surface around us.

Prevention methods for bacteria:

1. Meat must be cleaned before using them for cooking.
2. All clothes and utensils should be thoroughly and regularly washed and disinfected.
3. Food must be stored at low temperatures to prevent the growth of bacteria. Most frozen food can be cooked immediately, except meat.
4. The frozen meat needs to be thawed before cooking
   

Virus:

1. Viruses cause a wide range of diseases among living organisms.
2. Diseases caused by viruses in humans include poliomyelitis, mumps, rabies, influenza, measles, chickenpox, common cold, and AIDS.

Prevention and control:

1. Although there is no cure for AIDS, or HIV infection, avoiding multiple sex partners, using a condom, or other barrier methods of contraception that prevents direct contact between the body fluids of two persons can help prevent the disease.
2. Avoiding prostitution and homosexuality.
3. Screening of blood before transfusion.
4. Treatment of all blood and other products used in transfusion to destroy HIV.
5. Avoiding sharing of needles by use of disposable syringes.