Infectious diseases kill more people worldwide than any other single cause. The diseases caused by germs and which may infect any part of the body are called infectious diseases. They can be spread by any means where there is a germ. They are caused by pathogenic microorganisms such as bacteria, virus, parasites and fungi. Germs can be spread by direct or indirect contact. Vaccination, maintenance of proper hygiene and medicines help in the prevention of infection.
- Opportunistic infections
- Infectious diseases in pregnancy
- Deadly infectious diseases
- Common infectious diseases
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