Question

west nile virus is a disease that is spread by mosquitoes, which lay their eggs in standing water. it was first identified in east africa in 1937. it spread to the united states in 1999. this disease can cause swelling of the brain in humans. it can cause sickness and death in birds such as crows and jays. predatory birds, such as hawks and owls, may catch west nile from eating infected birds. the spread of west nile is linked to unusually warm, wet conditions caused by global climate change.

1. explain how warmer and wetter conditions could increase the frequency of west nile infections in both birds and humans. (2 points)

Explanation:

Warmer and wetter conditions are ideal for mosquito breeding as mosquitoes lay eggs in standing water. More mosquitoes mean a higher chance of the virus being transmitted to both birds and humans. Also, such conditions may weaken the immune - systems of birds and humans, making them more susceptible to the West Nile virus.

Answer:

Warmer and wetter conditions promote mosquito breeding, increasing their population and the likelihood of virus transmission. They may also weaken the immune - systems of birds and humans, making them more vulnerable to the virus.