Which of the following is a common vector of disease?

Mosquitoes are a well-known common vector of disease, primarily because they are capable of transmitting various pathogens that cause illnesses in humans. These include viruses like West Nile virus, Zika virus, dengue fever virus, and the malaria parasite. Mosquitoes act as carriers by feeding on the blood of infected hosts and then transferring the pathogens to other individuals when they bite.

The effectiveness of mosquitoes as disease vectors is largely attributed to their widespread presence in many environments and their ability to reproduce quickly. Their lifecycle and behavior contribute to the high potential for transmission of diseases, making them a significant focus in public health efforts worldwide.

Other insects, like flies, ants, and bees, do interact with disease in various ways, but they are not as primary in disease transmission as mosquitoes. Flies can act as mechanical vectors, carrying pathogens on their bodies, while ants and bees do not typically serve this role. Understanding the role of mosquitoes in disease transmission is crucial for developing effective control and prevention strategies in public health.