What organism transports the protist pathogen between hosts and acts as a vector?

What organism transports the protist pathogen between hosts and acts as a vector?

• A. Ticks.
• B. Flies.
• C. Mosquitoes.
• D. Rats.

Answer: (C)

A vector is an organism that transmits a pathogen from one host to another, and for protist pathogens like the malaria parasite, the vector is the mosquito. The parasite undergoes development inside the mosquito after a blood meal, and when the mosquito bites a new person, it injects the parasite, enabling infection. This biological development inside the mosquito is what makes it the true transporter between hosts. Other organisms don’t fit this role for malaria. Ticks can transmit some protist pathogens in other diseases, but not the classic malaria transmission; flies may mechanically carry pathogens but don’t support the parasite’s development; rats are typically reservoir hosts rather than vectors for this protist.

A vector is an organism that transmits a pathogen from one host to another, and for protist pathogens like the malaria parasite, the vector is the mosquito. The parasite undergoes development inside the mosquito after a blood meal, and when the mosquito bites a new person, it injects the parasite, enabling infection. This biological development inside the mosquito is what makes it the true transporter between hosts.

Other organisms don’t fit this role for malaria. Ticks can transmit some protist pathogens in other diseases, but not the classic malaria transmission; flies may mechanically carry pathogens but don’t support the parasite’s development; rats are typically reservoir hosts rather than vectors for this protist.