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:
D
Explanation:
Most drugs are addictive and it is highly likely that "once" will turn out to be "just once more", and "it couldn't hurt to do it just once more".
Parents get divorced, Breakup, lose a friend
Characterized by an inadequate number of circulating red blood cells due to the premature destruction of red blood cells by the spleen. ... A group of bone marrow disorders that are characterized by the insufficient production of one or more types of blood cells due to dysfunction of the bone marrow.
In what part of the neuron does the action potential typically initiate? (The initial segment has the lowest threshold and, therefore, is the place where most action potentials are initiated.)
