Infectious Diseases

Infectious Diseases human immunodeficiency virus- The human immunodeficiency virus is a virus that weakens the carcasss natural ability to campaign diseases and transmission organisations. The virus is rear in physical structure fluids which include blood, semen, vaginal fluids and dresser milk. The just about common way of this virus be go or so is susceptible sex. Other ways include using a polluted syringe/needle and breastfeeding a baby. During the preliminary days after(prenominal) being give by the virus, the persevering usually shows no symptoms and indeed the only way to experience whether the person has symptoms is by a blood test. Someone with human immunodeficiency virus is said to withdraw AIDS when tests show their immune system has stopped work and they develop life-threatening illnesses such as plentycer. There are more than 33 million tribe around the wold existing with HIV. The virus is particularly widespread in African countries s uch as South Africa and Zimbabwe. The virus whole caboodle very exactly by polishing complete the carrells that follow immunity and fight off diseases in our personify. These cells are called CD4 cells and the HIV virus enters these, replicates itself, exits the cell and kills it off during the process. This continues until the level of CD4 cells in our embody drops dangerously low. Tuberculosis- This is a bacteriuml disease that spreads through inhaling droplets of saliva or familial an infected persons sneeze. TB mainly affects the lungs hardly can spread to other parts of the body like the limbs or the brain. Symptoms of TB include persistent cough, weight loss and so on The bacterium that causes TB works very slowly and therefore the infected person might take years after being infected before developing any symptoms. The bodys immune system might either kill off the bacteria, crate a defensive layer around the infection or be unable to kill the bacteria. Thes e one-third situations leads to the bacteri! a being dead, the bacteria being in the body but not having any symptoms and the bacteria causing symptoms respectively. The last caseful is...If you want to get a full essay, club it on our website: BestEssayCheap.com

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