Jane gets bitten by a mosquito. through the bite, she can become infected with an organism carried by the mosquito. what role did the mosquito play in the chain of transmission?
portal of entry
susceptible host
vector
reservoir

Mosquito is playing the role as a "vector."

Vectors, for example, mosquitoes, insects, and ticks may help an irresistible specialist through absolutely mechanical means or may bolster development or changes in the operator. Instances of mechanical transmission are flies conveying Shigella on their members and insects conveying Yersinia pestis, the causative operator of torment, in their gut. Conversely, in biologic transmission, the causative operator of intestinal sickness or guinea worm malady experiences development in an intermediate host before it very well may be transmitted to people.

exercising at a moderate intensity, and slowly increasing the duration.