Question

1. malaria is primarily spread through: * 10 points

a. contaminated food and water
b. airborne droplets
c. direct contact with infected individuals
d. mosquito bites (vector - borne transmission) 1

1. which preventive measure is most effective against indirect contact transmission? * 10 points

a. using insect repellent
b. regular handwashing
c. covering your mouth when coughing
d. getting vaccinated

Explanation:

Malaria is a mosquito - borne disease. Mosquitoes (Anopheles mosquitoes) act as vectors. When an infected mosquito bites a person, it injects the malaria parasite (Plasmodium) into the human body.
For indirect contact transmission (which can involve contact with contaminated surfaces etc.), regular handwashing helps remove pathogens that might have been picked up from such surfaces. Insect repellent is more for vector - borne (like mosquito - related) prevention. Covering the mouth when coughing is for droplet - based prevention. Vaccination is a general preventive measure but not specifically the most effective for indirect contact in the context of common hygiene - related indirect contact.

Answer:

1. D. Mosquito bites (vector - borne transmission)
2. B. Regular handwashing