Pathogens and hiv essay

The person becomes vulnerable to serious illnesses.

etiology of hiv

CMV retinitis is a medical emergency. It is fatal if undetected or untreated and is the leading cause of death among people with HIV, responsible for more than 1 of 3 HIV-associated deaths.

human immunodeficiency virus facts

During pregnancy or delivery or through breast-feeding. Sharing contaminated intravenous drug paraphernalia needles and syringes puts you at high risk of HIV and other infectious diseases, such as hepatitis.

In people with darker skin, the lesions may look dark brown or black.

Pathogens and hiv essay

But you can protect yourself and others from infection. In reducing the activity of the immune system, late-stage HIV reduces the ability of the body to combat a range of infections, diseases, and cancers. Anal sex is more risky than is vaginal sex. Understand the germs in your surrounding environment that could lead to an OI. Later neutralising antibodies specific to proteins, involved in the entry of the virus into the cells, will be generated. These cells present processed antigens to T lymphocytes in lymph nodes. Once any of these infections occur, a doctor will diagnose AIDS. Transition to dolutegravir has already started in 82 low- and middle-income countries and is expected to improve the durability of the treatment and the quality of care of people living with HIV. Mycobacteria, including Mycobacterium avium and Mycobacterium kansasii: These bacteria occur naturally in the environment and pose few problems for people with fully-functioning immune systems. Abstract The host pathogen interaction is strikingly complex during HIV infection.

It can spread through sexual contact or blood, or from mother to child during pregnancy, childbirth or breast-feeding. Expanding access to treatment is at the heart of a set of targets for which aim to bring the world on track to end the AIDS epidemic by Aggressive treatment approaches have reduced the number of cases of wasting syndrome, but it still affects many people with AIDS.

Classification of hiv

People who use intravenous drugs often share needles and syringes. In people with darker skin, the lesions may look dark brown or black. Asymptomatic HIV In many cases, after the symptoms of acute retroviral syndrome, symptoms might not occur for many years. It's defined as a loss of at least 10 percent of body weight, often accompanied by diarrhea, chronic weakness and fever. Antibiotic , antifungal, or antiparasitic drugs can help treat an OI. The parasite grows in your intestines and bile ducts, leading to severe, chronic diarrhea in people with AIDS. WHO recommends PEP use for both occupational and non-occupational exposures and for adults and children. In , As illustrated in Figure 2, after gp binds to CD4 on the T cell 1. Natural killer NK cells.

NK cells have lytic activity against cells that have diminished expression of major histocompatibility complex MHC I antigens.

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