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Define the following:1. Pathogen 2. Vector 3. Droplet infection 4. Infectious diseases |
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Answer» 1. Pathogen: The microbes that cause disease are called pathogens. Example : Bacteria, virus, etc. 2. Vector: A vector is an organism that carries disease causing microbes (pathogens) from one host to another. They are the carriers of infection. Example: Mosquito, housefly, etc. 3. Droplet infection: Droplet infection is an infection transmitted from one individual to another by droplets of saliva or nasal moisture during coughing, sneezing, speaking and spitting. 4. Infectious diseases: The diseases which spread from an infected person to a healthy person through air, water, food, soil or physical contact are called communicable diseases. Example : Common cold, chickenpox, etc. |
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