In chapter human health and diseases,the definition of infectious disease is written as:- diseases which are easily transmitted from one person to another are known as infectious diseases.
Does it mean that hardly transmitted diseases are not considered infectious?
- Infectious diseases are caused by microorganisms such as viruses, bacteria, fungi or parasites.
- Infectious diseases can be spread from one person to another through contact with bodily fluids, by aerosols, through coughing and sneezing, or through a vector, for example a mosquito.
- Diseases whuich spread from one person to another are called communicable diseases. Diseases can be infectious but not necessarily communicable, for example, AIDS.
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