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