CBSE Class 9 Answered
Collect information on infectious and non-infectious diseases.Write their causes , symptoms , Treatment , prevention measures.
Asked by Parth Patel | 07 Nov, 2010, 09:22: AM
Expert Answer
Dear student,
Causes:
Infectious diseases are caused by some biological agents or pathogens such as viruses, bacteria, protozoans, helminthes, nematodes and fungi. They can spread rapidly from one person to a nother by various means.
Non-infectious diseases could be caused by several factors like:
- lack of essential substances in diet
- general wearing out or degeneration of tissues
- uncontrolled growth of tissues in any part of the body
- metabolic disorders
- injury and damage to any body part
I have answered the causes of infectious and non-infectious diseases. Kindly ask each question separately.
Regards,
Team Topperlearning
Answered by | 07 Nov, 2010, 09:37: AM
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