an individual is exposed to the water in the stream from which the sample show in the graph was taken. if the individual was exposed to the highest dose of the bacteria, which of the following bacteria would have the lowest probability of causing illness if ingested?
An individual is exposed to the water in the stream from which the sample show in the graph was taken. If the individual was exposed to the highest dose of the bacteria, which of the following bacteria would have the lowest probability of causing illness if ingested?
Response:
To address this question effectively, we need to examine the graph showing the bacterial concentrations in the stream water sample and consider the characteristics of the bacteria listed. Without the graph or specific information about the bacterial concentrations and types, it’s challenging to pinpoint the exact bacterium with the lowest probability of causing illness if ingested. However, we can make some general assessments based on common characteristics of certain bacteria.
If we assume that the bacteria listed in the options are commonly found in water sources and may potentially cause illness if ingested, we can consider factors such as pathogenicity, infective dose, and resistance to stomach acid.
Bacteria with lower pathogenicity, meaning they are less likely to cause illness or have milder symptoms, would generally pose a lower risk. Additionally, bacteria with higher infective doses, meaning a larger quantity is required to cause illness, would be less likely to cause harm when ingested in small amounts. Furthermore, bacteria that are more susceptible to stomach acid and digestive enzymes may be less likely to survive passage through the gastrointestinal tract and cause illness.
Without specific data on the bacterial concentrations in the stream water and their respective characteristics, it’s difficult to provide a definitive answer. However, in a hypothetical scenario where all else is equal, a bacterium with lower pathogenicity, higher infective dose, and greater susceptibility to stomach acid would have the lowest probability of causing illness if ingested. Therefore, careful consideration of these factors is crucial in assessing the potential health risks associated with exposure to contaminated water.