Introduction to infectious diseases

An infectious disease is caused by virus, fungus protozoan and bacteria. Some diseases are transmitted from person to person and include STDs, HIV and MRSA or it also be transmitted from an animal to person (zoonotic diseases). Swine flu is an emerging infectious disease.

Infectious diseases can kill people by spreading germs. Germs being smallest living things are found almost everywhere i.e. water, soil and air. Anyone can get infected when exposed to germs by breathing, drinking, eating and touching. Germs usually spread through sexual contact, kissing and insect bites. Vaccines are made to prevent against infectious diseases so it is recommended and advised by infectious disease specialist to wash hands properly and use medicines that help fighting against germs.

Some groups of infectious diseases are pediatric infectious diseases, viral infectious disease, clinical infectious diseases, bacterial infectious diseases, parasitic infectious diseases and waterborne infectious diseases and need infectious disease prevention treatment.