Question

Plasmodium is a pathogen that causes malaria. Identify the correct sequence of transmission of the pathogen.

पर्याय

• I	II	III	IV
  Stage of pathogen as it is transferred by vector bite.	First site in the host body where the pathogens infect and proliferate.	Second site in the host body where the pathogen infects and manifests clinical symptoms.	Stage of the pathogen as it is transferred to a new vector.
  Sporozoites	Erythrocyte infection	Liver infection	Gametocytes

• I	II	III	IV
  Stage of pathogen as it is transferred by vector bite.	First site in the host body where the pathogens infect and proliferate.	Second site in the host body where the pathogen infects and manifests clinical symptoms.	Stage of the pathogen as it is transferred to a new vector.
  Gametocytes	Erythrocyte infection	Liver infection	Sporozoites

• I	II	III	IV
  Stage of pathogen as it is transferred by vector bite.	First site in the host body where the pathogens infect and proliferate.	Second site in the host body where the pathogen infects and manifests clinical symptoms.	Stage of the pathogen as it is transferred to a new vector.
  Gametocytes	Liver infection	Erythrocyte infection	Sporozoites

• I	II	III	IV
  Stage of pathogen as it is transferred by vector bite.	First site in the host body where the pathogens infect and proliferate.	Second site in the host body where the pathogen infects and manifests clinical symptoms.	Stage of the pathogen as it is transferred to a new vector.
  Sporozoites	Liver infection	Erythrocyte infection	Gametocytes

Answer 1

I	II	III	IV
Stage of pathogen as it is transferred by vector bite.	First site in the host body where the pathogens infect and proliferate.	Second site in the host body where the pathogen infects and manifests clinical symptoms.	Stage of the pathogen as it is transferred to a new vector.
Sporozoites	Liver infection	Erythrocyte infection	Gametocytes

Explanation:

When a mosquito bites a human, it injects sporozoites, which travel to the liver to proliferate (first site). They then infect red blood cells (second site), leading to symptoms. Finally, a new vector (mosquito) takes up gametocytes from an infected human to continue the cycle.