Ticks are known carriers of which two diseases?

The selection of Lyme Disease and Rocky Mountain Fever as the correct answer is based on the recognition of these two illnesses as significant diseases transmitted by ticks.

Lyme Disease is caused by the bacterium Borrelia burgdorferi, which is primarily spread to humans through the bite of infected black-legged ticks, commonly known as deer ticks. This disease can lead to various symptoms, including fever, headache, fatigue, and a characteristic skin rash. If not treated early, it can result in more severe health issues.

Rocky Mountain Spotted Fever, on the other hand, is caused by the bacterium Rickettsia rickettsii. This disease is primarily transmitted by the bite of infected American dog ticks and wood ticks. Symptoms of Rocky Mountain Spotted Fever often include high fever, rash, and headaches, and it can lead to severe health complications if not promptly treated.

Both diseases are notably linked to tick bites and highlight the role of ticks as vectors for specific pathogens affecting human health. Other options list diseases like West Nile Virus, Zika Virus, and Malaria, which are not primarily associated with ticks, as they are mainly transmitted through mosquitoes or other vectors.