EVERYDAY SCIENCE

Detailed explanation-1: -A vector is an organism that does not cause disease itself but which spreads infection by conveying pathogens from one host to another. For example, Mosquitoes are called vectors, which means they are the carriers of Malaria.

Detailed explanation-2: -It is not necessary for vectors to get infected by the pathogens they carry. In many cases, the pathogen does not infect the vectors, they only use the vectors to reach the appropriate host organism. The best example for this is malaria. The female Anopheles mosquito only acts as a vector for Plasmodium.

Detailed explanation-3: -A vector is an organism that does not cause disease itself but that transmits infection by conveying pathogens from one host to another. Vectors may be mechanical or biological. A mechanical vector picks up an infectious agent on the outside of its body and transmits it in a passive manner.

Detailed explanation-4: -Salmonella typhi (causal organism of typhoid) is transmitted by faecal oral route and not by a vector.

Detailed explanation-5: -Pathogens can be transmitted a few ways depending on the type. They can be spread through skin contact, bodily fluids, airborne particles, contact with feces, and touching a surface touched by an infected person.