Cattle are allowed to pasture in a field that contains the farmhouse well, and the farmer’s family becomes ill with a gastrointestinal pathogen after drinking the water. what type of transmission of infectious agents would this be?
biological vector transmission
direct contact transmission
indirect contact transmission
vehicle transmission

vehicle transmission

Explanation:

Vehicle transmission is a mode of transmission of infectious agent through substances such as soil, water, air. This process leads to the transmission of the infectious agent to the body of the host.

According to the given situation, the gastrointestinal pathogen will enter into the drinking water from the cattle. The water will be consumed by the family and this will result in the condition of infection. Here, water is the vehicle for the transmission of infection.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

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