Category 8 Pesticide License Practice Test

Flies are known to be significant vectors for several pathogens that can lead to serious illnesses in humans. The correct choice highlights some of the most well-known waterborne and foodborne diseases that are associated with fly contamination.

Dysentery, cholera, and typhoid are diseases that primarily spread through contaminated food and water, and flies can contribute to the transmission of these pathogens. Flies can land on fecal matter, pick up bacteria, and then subsequently land on food or surfaces, thereby facilitating the spread of these diseases. For instance, cholera is caused by the Vibrio cholerae bacteria, which can be present in contaminated water, and flies can carry these pathogens to human food sources.

In contrast, the other options contain diseases that are either not typically associated with fly transmission or involve different mechanisms of spread. Malaria, hepatitis, and dengue fever are primarily transmitted through insect vectors like mosquitoes, while tuberculosis, influenza, and strep throat are primarily respiratory diseases that spread from person to person through droplets rather than through contaminators carried by flies. Asthma and allergies are not infectious diseases but rather conditions that can be exacerbated by environmental factors, including allergens that flies may not directly transmit.

Thus, the presence of dysent