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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Drug addiction is a chronic disease characterized by compulsive, or uncontrollable, drug seeking and use despite harmful consequences and changes in the brain, which can be long lasting. These changes in the brain can lead to the harmful behaviors seen in people who use drugs. Drug addiction is also a relapsing disease. Relapse is the return to drug use after an attempt to stop.
Answer:
1. aneamia
2.he should eat food rich in the mineral iron
Its A. The adenoids and Tonsils. Adenoids are a patch of tissue thats high in the throat, directly behind the nose. They, along with the tonsils, are parts of the lymphatic system. In simple terms it helps stop infection and keep many body fluids in balance. They basically trap the germs that make their way through the mouth and nose. To add on, when the tonsils become inflamed either by taking too much germs or bacteria, thats what tonsillitis is. Hope this helps
