There are numerous circumstances that give pathogens the chance to harm people.
The first occurs when an infection has already weakened the immune system. In situations like this, other pathogens may infect the host opportunistically and cause an infection. If the human host does not maintain proper personal and environmental hygiene, that is another condition. Many pathogens thrive in unclean environments, so by failing to maintain proper environmental hygiene, a person increases his risk of contracting a pathogen.
Finally, since so many pathogens are transferred by vectors, humans are more likely to contract the diseases that these vectors aid in spreading if they do not take the necessary precautions to stop their activity.
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Answer:
ITs all of the above cuz u need all of it to get better
Explanation:
Depending on what water source you use, if your using faucet water your food will be clean but not totally.
If your using a lake, ocean, bodies of water your food will not be as clean, water from bodies of water are full of bacteria, and other contaminants.That being said, using a faucet is your best bet or even try to clarify water from bodies can help.
