How Does Hiv Cause Aids

What Conditions Are Considered To Be Opportunistic

Some of the most common of these OIs/cancers among HIV-positive people include:

Cancer: The types of cancers that are you are more likely to get if you have AIDs include lymphoma, Kaposis sarcoma, invasive cervical cancer, anal cancer, liver cancer, and cancers of the mouth, throat and lungs.

Candidiasis : This condition is caused by Candida fungus. It can happen in the skin, nails and mucous membranes throughout the body, such as the mouth or the vagina. The cases can be troublesome, but thrush is especially dangerous when it affects the esophagus or parts of the respiratory system .

Pneumonia: This respiratory condition is most commonly caused by _Pneumocystis jirovecii and the bacterium Streptococcus pneumoniae._

Salmonella: This infection is spread through contaminated food and water. It causes diarrhea, vomiting and nausea.

Toxoplasmosis: This disease is caused by a parasites that live in cats and rodents and other warm-blooded animals. The infection is spread through the feces. Toxoplasmosis can cause severe problems in the lungs, heart, brain and other organs. If you have a cat, wear gloves to change the litter and be thorough in washing your hands.

What Are The Factors That Affect Disease Progression

The most important factor affecting HIV progression is the ability to achieve viral suppression. Taking antiretroviral therapy regularly helps many people slow the progression of HIV and reach viral suppression.

However, a variety of factors affect HIV progression, and some people progress through the phases of HIV more quickly than others.

Factors that affect HIV progression can include:

• Ability to achieve viral suppression. Whether someone can take their antiretroviral medications and achieve viral suppression is the most important factor by far.
• Age when symptoms start. Being older can result in faster progression of HIV.
• Health before treatment. If a person had other diseases, such as tuberculosis, hepatitis C, or other sexually transmitted diseases , it can affect their overall health.
• Timing of diagnosis. Another important factor is how soon a person was diagnosed after they contracted HIV. The longer between their diagnosis and treatment, the more time the disease has to progress unchecked.
• Lifestyle. Practicing an unhealthy lifestyle, such as having a poor diet and experiencing severe stress, can cause HIV to progress more quickly.
• Genetic history. Some people seem to progress more quickly through their disease given their genetic makeup.

Some factors can delay or slow the progression of HIV. These include:

Living a healthy lifestyle and seeing a healthcare provider regularly can make a big difference in a persons overall health.

Did Hiv Start In Africa

Using the earliest known sample of HIV, scientists have been able to create a ‘family-tree’ ancestry of HIV transmission, allowing them to discover where HIV started.

Their studies concluded that the first transmission of SIV to HIV in humans took place around 1920 in Kinshasa in the Democratic Republic of Congo .10

The same area is known for having the most genetic diversity in HIV strains in the world, reflecting the number of different times SIV was passed to humans. Many of the first cases of AIDS were recorded there too.

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How Do People Become Infected With Hiv

HIV is in the blood, semen, vaginal fluid and breast milk of an infected person. It can be spread by exposure to these body fluids by:

• unprotected anal or vaginal sex without a condom
• sharing drug injecting equipment
• tattooing, piercing and other procedures with unsterile needles or equipment
• transmission from mother to baby during pregnancy, childbirth or breastfeeding
• oral sex, although this is rare
• sharps injuries

It is important to remember that HIV is not spread through activities such as kissing, sharing cups and cutlery, normal social contact, toilet seats or mosquitoes.

You are at higher risk of HIV infection if:

• you are a man, a transgender woman or a person who identifies as gender diverse who has sex with men
• you have sex or share needles with someone else at risk of HIV
• you share sex toys
• you have sex with people from countries with a high rate of HIV infection
• you inject drugs
• you have had tattoos or other piercings overseas using unsterile equipment
• you have a sexually transmitted infection . People can be infected with several different STIs at the same time. Having an STI can make it easier to become infected with HIV and pass it on to sexual partners
• you have had a blood transfusion in a country where the blood supply is not safe

Some people are at a higher risk of HIV infection because they are exposed to more people with HIV infection and/or engage in more high-risk behaviour. These include:

How Is Hiv Treated

Treatments for HIV typically involve antiretroviral therapy. This isnt a specific regimen, but instead a combination of three or four drugs. The U.S. Food and Drug Administration has currently approved nearly 50 different medications to treat HIV.

Antiretroviral therapy works to prevent the virus from copying itself. This maintains immunity levels while slowing the progression of HIV.

Before prescribing medication, a healthcare provider will take the following factors into consideration:

• a persons health history
• the levels of the virus in the blood

HIV doesnt cause a lot of outward or noticeable symptoms until the disease has progressed. For this reason, its important to understand how HIV is transmitted and the ways to prevent transmission.

HIV can be transmitted by:

• having sex, including oral, vaginal, and anal sex
• sharing needles, including tattoo needles, needles used for body piercing, and needles used for injecting drugs
• coming into contact with body fluids, such as semen, vaginal fluid, blood, and breast milk

HIV is not transmitted by:

• breathing the same air as a person living with HIV
• getting bitten by a mosquito or other biting insect
• hugging, holding hands with, kissing, or touching a person living with HIV
• touching a door handle or toilet seat thats been used by an HIV-positive person

Keeping this in mind, some of the ways a person can prevent HIV include:

Symptoms can take years to appear, which is why its so important to get tested regularly.

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How Did Hiv Cross From Chimps To Humans

The most commonly accepted theory is that of the ‘hunter’. In this scenario, SIVcpz was transferred to humans as a result of chimps being killed and eaten, or their blood getting into cuts or wounds on people in the course of hunting.5 Normally, the hunter’s body would have fought off SIV, but on a few occasions the virus adapted itself within its new human host and became HIV-1.

There are four main groups of HIV strains , each with a slightly different genetic make-up. This supports the hunter theory because every time SIV passed from a chimpanzee to a human, it would have developed in a slightly different way within the human body, and produced a slightly different strain. This explains why there is more than one strain of HIV-1.6

The most studied strain of HIV is HIV-1 Group M, which is the strain that has spread throughout the world and is responsible for the vast majority of HIV infections today.

How Can I Protect Myself

The best way to protect yourself from HIV is to not have sex and not share needles.

If you decide to have sex, reduce your risk of getting HIV by:

• using a condom every time you have sex
• getting tested for HIV and making sure all partners do too
• reducing the number of sexual partners you have
• getting tested and treated for STDs having an STD increases the risk of HIV infection

Understanding how HIV spreads can help you make safer choices about sex. Talk to your doctor if you have any questions about HIV and if you want to get tested.

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What Are The Symptoms Of Hiv

After the first month or so, HIV enters the clinical latency stage. This stage can last from a few years to a few decades.

Some people dont have any symptoms during this time, while others may have minimal or nonspecific symptoms. A nonspecific symptom is a symptom that doesnt pertain to one specific disease or condition.

These nonspecific symptoms may include:

• headaches and other aches and pains
• swollen lymph nodes
• recurrent oral or vaginal yeast infections
• pneumonia
• shingles

As with the early stage, HIV is still transferable during this time even without symptoms and can be transmitted to another person.

However, a person wont know they have HIV unless they get tested. If someone has these symptoms and thinks they may have been exposed to HIV, its important that they get tested.

HIV symptoms at this stage may come and go, or they may progress rapidly. This progression can be slowed substantially with treatment.

With the consistent use of this antiretroviral therapy, chronic HIV can last for decades and will likely not develop into AIDS, if treatment was started early enough.

The cause of the rash determines:

• how it looks
• how it can be treated depends on the cause

Hiv Symptoms In Men: Is There A Difference

Symptoms of HIV vary from person to person, but theyre similar in men and women. These symptoms can come and go or get progressively worse.

If a person has been exposed to HIV, they may also have been exposed to other sexually transmitted infections . These include:

• human papillomavirus , which can cause genital warts and lead to cervical cancer

While not related to HIV symptoms, another risk for women with HIV is that the virus can be transmitted to a baby during pregnancy. However, antiretroviral therapy is considered safe during pregnancy.

Women who are treated with antiretroviral therapy are at very low risk for transmitting HIV to their baby during pregnancy and delivery. Breastfeeding is also affected in women with HIV. The virus can be transferred to a baby through breast milk.

In the United States and other settings where formula is accessible and safe, its recommended that women with HIV not breastfeed their babies. For these women, use of formula is encouraged.

Options besides formula include pasteurized banked human milk.

For women who may have been exposed to HIV, its important to know what symptoms to look for.

AIDS refers to acquired immunodeficiency syndrome. With this condition, the immune system is weakened due to HIV thats typically gone untreated for many years.

If HIV is found and treated early with antiretroviral therapy, a person will usually not develop AIDS.

Symptoms of AIDS can include:

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What Are The Symptoms Of Hiv/aids

The first signs of HIV infection may be flu-like symptoms:

• Swollen lymph nodes
• Mouth ulcers

These symptoms may come and go within two to four weeks. This stage is called acute HIV infection.

If the infection is not treated, it becomes chronic HIV infection. Often, there are no symptoms during this stage. If it is not treated, eventually the virus will weaken your body’s immune system. Then the infection will progress to AIDS. This is the late stage of HIV infection. With AIDS, your immune system is badly damaged. You can get more and more severe infections. These are known as opportunistic infections .

Some people may not feel sick during the earlier stages of HIV infection. So the only way to know for sure whether you have HIV is to get tested.

Does Hiv Viral Load Affect Getting Or Transmitting Hiv

Yes. Viral load is the amount of HIV in the blood of someone who has HIV. Taking HIV medicine daily as prescribed can make the viral load very lowso low that a test cant detect it .

People with HIV who take HIV medicine daily as prescribed and get and keep an undetectable viral load have effectively no risk of transmitting HIV to an HIV-negative partner through sex.

HIV medicine is a powerful tool for preventing sexual transmission of HIV. But it works only as long as the HIV-positive partner gets and keeps an undetectable viral load. Not everyone taking HIV medicine has an undetectable viral load. To stay undetectable, people with HIV must take HIV medicine every day as prescribed and visit their healthcare provider regularly to get a viral load test. Learn more.

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How Is Hiv Diagnosed

Diagnosis of HIV infection during infancy depends on the detection of the virus. Since all infants born to HIV-infected mothers have a positive antibody test at birth because of the passive transfer of the HIV antibody across the placenta, virological testing is used to confirm the diagnosis.

For infants born to HIV-infected mothers, viral diagnostic testing is usually performed within the first 2 days of life, at 1 to 2 months of age, and at 4 to 6 months of age. A diagnosis of HIV infection can be made with two positive virologic tests obtained from different blood samples.

For children over 18 months, adolescents, or adults, diagnosis is made by testing the blood for the presence of HIV antibody.

Is It Safe For Children With Hiv To Receive Routine Immunizations

• MMR, or measles, mumps, and rubella vaccine, is safe to give to children with HIV, unless they have a severely weakened immune system.

• DTaP/Td vaccine is safe to give to infants and children with HIV.

• Hib and Hep B vaccines are safe to give to children with HIV.

• Hepatitis A and B vaccines are safe to give to HIV-positive children.

• VZIG should be considered for known HIV-positive children, depending on their immune status.

• A yearly influenza vaccine is recommended for children with HIV, as well as any individual living in the same household as a child with HIV. There are two types of influenza vaccine children and adults with HIV should receive the “shot” form of the vaccine–not the nasal spray form, as it contains a live virus. Pneumococcal vaccine can be safely administered to age-appropriate HIV-infected children.

Always consult with your child’s doctor regarding immunizations for an HIV-infected child.

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Still Healthy Without Medications

The denialists say that there are HIV-positive people who do not take AIDS drugs and stay healthy for several years, and that this somehow proves that HIV is harmless. What’s missing in this reasoning is any understanding of the natural, untreated history of HIV disease. The denialists confuse the question of whether HIV is the cause of AIDS with the question of whether HIV has yet caused AIDS in themselves.

On average, HIV-infected people who have access to health care and a reasonable diet, will take about 10 years to progress to AIDS. This means that 10 years after infection, about half will have progressed to AIDS and another half will have not. A small percentage progress rapidly to AIDS within two to three years, while some reach 15 years or longer without progressing, even without treatment. At 20 years after infection, the percentage who are still well without treatment becomes vanishingly small . There is nothing unusual about this. Many other diseases-such as cancer, heart disease, and multiple sclerosis-affect people differently over different periods of time.

Stages Of Hiv Infection

The stages of infection from person to person vary slightly, both in severity and the speed of progression. These stages map the depletion of immune cells as the body’s defenses further and further degrade.

With each progression, the risk of opportunistic infections increases until the immune system is said to be fully compromised. It is at this stage that the risk of illness and death is particularly high.

The stages of infection can be roughly classified as follows:

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Hiv And Aids Treatment

More than 25 antiretroviral therapy drugs are approved to treat the virus. Your doctor will prescribe a mix of these medications.

The drugs will help stop HIV from making copies of itself. That will keep you healthy and lower your risk of spreading it.

Thereâs no cure for HIV or AIDS. ARTâs goal is to lower your viral load and keep your immune system healthy. The idea is to lower the viral load to âundetectableâ and keep it that way, by taking your medicine every day as prescribed.

Living With Hiv: What To Expect And Tips For Coping

More than 1.2 million people in the United States are living with HIV. Its different for everybody, but with treatment, many can expect to live a long, productive life.

The most important thing is to start antiretroviral treatment as soon as possible. By taking medications exactly as prescribed, people living with HIV can keep their viral load low and their immune system strong.

Its also important to follow up with a healthcare provider regularly.

Other ways people living with HIV can improve their health include:

• Make their health their top priority. Steps to help people living with HIV feel their best include:
• fueling their body with a well-balanced diet
• exercising regularly
• avoiding tobacco and other drugs
• reporting any new symptoms to their healthcare provider right away

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