The rapid proliferation of mosquitoes in an area is due to a lack of social hygiene among residents. Which of the following pathogen can be transmitted by mosquitoes in that dirty locality?

Mosquitoes proliferate by laying eggs in stagnant water and dirty places like garbage where organic matter is rotting. They act as vectors of pathogens that cause deadly diseases in humans when they bite a healthy individual.

Plasmodium is a protozoan pathogen that is transmitted by mosquitoes and causes malaria in humans.

Thus, Plasmodium is a pathogen that can be transmitted by mosquitoes in a locality where there is a lack of social hygiene.