What are the different means by which infectious diseases are spread?
The different modes of transmission of infectious diseases are:
→ Through Air: Certain disease-causing micro-organisms are expelled in the air by coughing, sneezing, talking, etc. These micro-organisms can travel through dust particles or water droplets in the air to reach other people. For example, tuberculosis, pneumonia, etc. spread through the air.
→ Through Water: Sometimes causal micro-organisms get mixed with drinking water and spread water-borne diseases. Cholera, for example, is the water-borne disease.
→ Through Sexual Contact: Sexual act between two people can lead to the transfer of diseases such as syphilis, gonorrhoea, AIDS, etc.
→ Through Vectors: Certain diseases spread by other animals called vectors. For example, mosquitoes spread malaria.