How are vector-borne encephalitidies transmitted?

Vector-borne encephalitidies are primarily transmitted through the bite of infected mosquitoes. This method of transmission is characteristic of many viral encephalitis diseases, wherein mosquitoes act as vectors, hosting the virus and facilitating its transfer to hosts such as humans and animals. The role of mosquitoes is critical since they can carry the pathogens in their saliva, which are injected into the bloodstream of the host during feeding.

Other modes of transmission listed, such as through human contact, contaminated water, or food sources, do not apply to vector-borne encephalitidies. These diseases rely specifically on biological vectors—in this case, mosquitoes—rather than direct contact or environmental sources like water or food. Thus, understanding the specific role of mosquitoes in the transmission process is essential for recognizing the epidemiology and prevention strategies related to these diseases.