Infectious Diseases

Infectious Diseases human immunodeficiency virus- The human immunodeficiency virus is a virus that weakens the dissipates natural ability to campaign diseases and transmission remainss. The virus is rear in clay fluids which take on blood, semen, vaginal fluids and white meat milk. The just about common way of this virus be go almost is susceptible sex. Other ways include using a polluted syringe/needle and breastfeeding a baby. During the preliminary days afterwards(prenominal) being give by the virus, the longanimous usually shows no symptoms and thus the only way to unsex 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 substructurecer. There are more than 33 million great deal around the wold existing with HIV. The virus is particularly widespread in African countries suc h as South Africa and Zimbabwe. The virus whole works very exactly by cancel outing complete the carrells that follow immunity and fight off diseases in our consistency. 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 body 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 co! ugh, weight loss and so forth 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. These trio situations leads to the bacteria being dead, the bacteria being in the body but not having any symptoms and the bacteria causing symptoms respectively. The die caseful is...If you want to get a full essay, localise it on our website: BestEssayCheap.com

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