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Mention different causes of diseases.Subject - BiologyChapter - Why Do We Fall ill ? Class - 9th Hint for the answer - Cause - immediate and contributing

Answer»

Nfectious diseases can be CAUSED by:

BACTERIA. These one-cell organisms are RESPONSIBLE for illnesses such as strep THROAT, urinary tract infections and tuberculosis.Viruses. Even smaller than bacteria, viruses cause a multitude of diseases — ranging from the common cold to AIDS.

Hepatitis B. According to current statistics, hepatitis B is the most common INFECTIOUS disease in the world, affecting some 2 billion people -- that's more than one-quarter of the world's population. ...



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