Friday, January 27, 2023

Where Does Hiv Com From

Symptom : Nausea Vomiting And Diarrhoea

New Way to Look for HIV

Many people experience digestive system problems as a symptom of the early stages of HIV. However, nausea, vomiting and diarrhoea can also appear in later stages of infection, usually as the result of an opportunistic infection.

It is important to stay hydrated. Diarrhoea that is unremitting and not responding to usual therapy might be an indication of HIV.

Can I Get Pregnant If I Have Hiv

Some people think that HIV hurts your chances of getting pregnant, but this isnt true. If you have HIV and want to become pregnant, talk to your healthcare provider. Together you can make a plan before you try to get pregnant to keep you, your partner and any future children healthy.

HIV can spread to your partner during unprotected sex and to your baby during pregnancy, childbirth and breastfeeding. Taking ART medications can greatly reduce your risk of transmitting HIV to your baby, especially if you have an undetectable viral load. Your provider may recommend that you dont breastfeed your baby and use formula instead.

How Is Hiv Treated

Doctors recommend treatment for all people with HIV, including those who are newly diagnosed, no matter what their CD4 T cell counts are. Treatment may reduce HIV to undetectable levels, improve CD4 T cell counts, and prevent HIV from progressing to AIDS. People must take medication daily and consistently to prevent HIV from becoming drug-resistant.

Common HIV therapies include:

  • Antiretroviral therapy, a combination of two or three drugs, which helps limit HIV from replicating, strengthens the immune system, and helps lower the risk of transmission
  • Antifungal medications, which may treat thrush and other fungal infections
  • Antibiotics, which may treat certain bacterial infections and pneumonia
  • Pneumococcal vaccine, which can lower the risk of pneumonia
  • Other vaccines, such as the flu shot and hepatitis B vaccine, which can lower the risk of illness
  • Pre-exposure prophylaxis therapy can lower the risk of HIV during sexual encounters or during drug usage among high-risk people
  • Post-exposure therapy can lower the risk of HIV among people who are exposed to the virus, including health care workers, drug users, and sexual assault victims

Antiretroviral therapy may also reduce the risk of HIV among certain people.

You May Like: What Is Hiv Positive But Undetectable

How Does Hiv Cause Infection Of The Body

HIV is a type of virus called a retrovirus, which inserts a copy of its RNA into a cells DNA. The change it makes to the cells DNA causes the cell with the infection to create new copies of the retrovirus.

The new retroviruses go on to cause infections in new cells, changing their DNA and repeating the process.

Without treatment, a person living with HIV will eventually develop AIDs, making secondary infection from viruses, bacteria, and other organisms more likely.

A person can contract HIV via contact with bodily fluids.

The majority of people acquire HIV from:

Pathogenicity Of Siv In Non

Capsid

In most non-human primate species, natural SIV infection does not cause a fatal disease . Comparison of the gene sequence of SIV with HIV should, therefore, provide information about the factors necessary to cause disease in humans. The factors that determine the virulence of HIV as compared to most SIVs are only now being elucidated. Non-human SIVs contain a nef gene that down-regulates CD3, CD4, and MHC class I expression most non-human SIVs, therefore, do not induce immunodeficiency the HIV-1nef gene, however, has lost its ability to down-regulate CD3, which results in the immune activation and apoptosis that is characteristic of chronic HIV infection.

In addition, a long-term survey of chimpanzees naturally infected with SIVcpz in Gombe National Park, Tanzania found that, contrary to the previous paradigm, chimpanzees with SIVcpz infection do experience an increased mortality, and also suffer from a human AIDS-like illness. SIV pathogenicity in wild animals could exist in other chimpanzee subspecies and other primate species as well, and stay unrecognized by lack of relevant long term studies.

Also Check: What Is Hiv 1 And 2 Antibody Test

What Are The Signs And Symptoms Of Aids

Having an infection with the HIV virus does not automatically mean that the patient has AIDS. As the HIV virus infects more and more CD4 cells and makes more copies of itself, the patients immune system gets overwhelmed and begins to falter. When the immune system breaks down due to HIV infection, opportunistic infections like fungal infections, pneumonias, and cancers can occur. When this level of HIV infection occurs, it is called AIDS .

Some of the signs and symptoms of progression of HIV to AIDS are:

The Science Of Hiv And Aids

Key Points

  • HIV stands for Human Immunodeficiency Virus, a pathogen that works by attacking the human immune system.
  • HIV specifically targets CD4 cells, the bodys principal defenders against infection, using them to make copies of themselves.
  • Antiretroviral drugs target specific stages of the HIV lifecycle to stop HIV from replicating.

Explore this page to find out more about , , and .

HIV stands for Human Immunodeficiency Virus, a pathogen that works by attacking the human immune system. It belongs to a class of viruses called retroviruses and more specifically, a subgroup called lentiviruses, or viruses that cause disease slowly. 1

HIV cannot replicate on its own, so in order to make new copies of itself, it must infect cells of the human immune system, called CD4 cells. CD4 cells are white blood cells that play a central role in responding to infections in the body. 2

Over time, CD4 cells are killed by HIV and the bodys ability to recognise and fight some types of infection begins to decline. If HIV is not controlled by treatment, the loss of CD4 cells leads to the development of serious illnesses, or opportunistic infections. In people with normal CD4 cell levels, these infections would be recognised and cleared by the immune system. 3

Don’t Miss: Free Hiv Testing San Francisco

How Long Does Hiv Live Outside The Body In Blood

HIV in blood from something like a cut or nosebleed can be active for several days, even in dried blood. The amount of virus is small, though, and unable to easily transmit infection.

HIV survival time in fluid outside of the body can increase when a small amount is left in a syringe. After an injection in someone with high levels of HIV, enough blood stays in the syringe to transmit the virus. Since its inside a syringe, the blood isnt as exposed to air as it is on other surfaces.

According to the , when the temperature and other conditions are just right, HIV can live as long as 42 days in a syringe, but this typically involves refrigeration.

HIV lives the longest in a syringe at room temperature, but can still live up to

Va Promossa L’educazione Su Certi Temi

Mulher é curada do HIV com novo tratamento

Giornata mondiale contro l’AIDS, il punto sulla situazione in Italia

Parlando di discriminazione, lei è presidente dellInternational Aids Society. Tra le altre cose, vi occupate di educazione. Quale pensa possa essere il messaggio più importante da dare oggi contro la discriminazione che ancora viene associata a Hiv e Aids?

Per concludere, come si immagina il futuro? È possibile, per lei, un mondo senza Aids?

Immagino un futuro in cui tutti hanno accesso ai test, alle cure e alle strategie di prevenzione. Attualmente solo il 70% delle persone che convive con lHiv si sottopone alle cure, dobbiamo fare in modo che questo numero cresca. Spero anche in un futuro in cui non ci sia più ignoranza, stigmatizzazione e discriminazione, e in cui giovani donne e uomini sappiano come prevenire linfezione da Hiv. Avremo mai un mondo senza Hiv? Non credo succederà, ma quello che dobbiamo avere è un mondo senza Aids, in cui le persone non devono più ammalarsi. E un giorno, in futuro, spero che ci sia una cura definitiva e un vaccino. Ho molta fiducia in quello che la scienza ha ottenuto e che penso potrà ottenere in futuro.

Recommended Reading: How Does Art Work For Hiv

Where Can I Get More Information

For more information on neurological disorders or research programs funded by the National Institute of Neurological Disorders and Stroke, contact the Institute’s Brain Resources and Information Network at:

Office of Communications and Public LiaisonNational Institute of Neurological Disorders and StrokeNational Institutes of HealthDepartment of Health and Human ServicesBethesda, MD 20892

NINDS health-related material is provided for information purposes only and does not necessarily represent endorsement by or an official position of the National Institute of Neurological Disorders and Stroke or any other Federal agency. Advice on the treatment or care of an individual patient should be obtained through consultation with a physician who has examined that patient or is familiar with that patient’s medical history.

All NINDS-prepared information is in the public domain and may be freely copied. Credit to the NINDS or the NIH is appreciated.

The First World Aids Day

At the beginning of the 1980s, before HIV had been identified as the cause of AIDS, the infection was thought to only affect specific groups, such as gay men in developed countries and people who inject drugs. The HIV virus was first isolated by Dr Françoise Barré-Sinoussi and Dr Luc Montagnier in 1983 at the Institut Pasteur. In November that year, WHO held the first meeting to assess the global AIDS situation and initiated international surveillance. It was then that the global health community understood that HIV could also spread between heterosexual people, through blood transfusions, and that infected mothers could transmit HIV to their babies.

United Nations commemorative stamp to raise awareness of HIV and the AIDS epidemic

Read Also: Signs Of Hiv In Urine Test

Who Is At Risk For Hiv Infection

Anyone can get HIV, but certain groups have a higher risk of getting it:

  • People who have another sexually transmitted disease . Having an STD can increase your risk of getting or spreading HIV.
  • People who inject drugs with shared needles.
  • Gay and bisexual men.
  • Black/African Americans and Hispanic/Latino Americans. They make up a higher proportion of new HIV diagnoses and people with HIV, compared to other races and ethnicities.
  • People who engage in risky sexual behaviors, such as not using condoms.

Factors such as stigma, discrimination, income, education, and geographic region can also affect people’s risk for HIV.

How Do You Get Hiv

HIV Replication Cycle
  • sharing needles or syringes for shooting drugs, piercings, tattoos, etc.

  • getting stuck with a needle that has HIV-infected blood on it

HIV is usually spread through having unprotected sex. Using condoms and/or dental dams every time you have sex and not sharing needles can help protect you and your partners from HIV. If you do have HIV, treatment can lower or even stop the chances of spreading the virus to other people during sex. If you dont have HIV, theres also a daily medicine called PrEP that can protect you from HIV.

HIV can also be passed to babies during pregnancy, birth, or breastfeeding. A pregnant woman with HIV can take medicine to greatly reduce the chance that her baby will get HIV.

HIV isnt spread through saliva , so you CANT get HIV from kissing, sharing food or drinks, or using the same fork or spoon. HIV is also not spread through hugging, holding hands, coughing, or sneezing. And you cant get HIV from a toilet seat.

A long time ago, some people got HIV from infected blood transfusions. But now, giving or getting blood in medical centers is totally safe. Doctors, hospitals, and blood donation centers dont use needles more than once, and donated blood is tested for HIV and other infections.

Read Also: Can You Test Negative For Hiv And Still Have It

How Do I Know If I Have Hiv

The only way to know for sure if you have HIV is to get tested. Testing is relatively simple. You can ask your health care provider for an HIV test. Many medical clinics, substance abuse programs, community health centers, and hospitals offer them too.

To find an HIV testing location near you, use the HIV Services Locator.

HIV self-testing is also an option. Self-testing allows people to take an HIV test and find out their result in their own home or other private location. You can buy a self-test kit at a pharmacy or online. Some health departments or community-based organizations also provide self-test kits for a reduced cost or for free.

Learn more about HIV self-testing and which test might be right for you.

The COVID-19 pandemic has made it more difficult for some people to access traditional places where HIV testing is provided. Self-testing allows people to get tested for HIV while still following social distancing practices. Ask your local health department or HIV service organization if they offer self-testing kits.

A Sexually Transmitted Infection

Katie Salerno/Flickr Creative Commons

Contracting other sexually transmitted diseases can significantly increase the risk of getting HIV. For instance, some STDs like syphilis and herpes cause skin lesions that make it easier for HIV to enter the body.

STDs may also cause inflammation, which is something that is triggered by the bodys immune system. HIV preferentially infects defensive white blood cells, so when there are more of them around, its easier to contract HIV.

Having an STD like gonorrhea or syphilis means that youve engaged in unprotected sex, a key risk factor for HIV. So if you have been diagnosed with an STD, talk to your healthcare provider about how you can reduce your HIV risk.

Recommended Reading: How Long Does It Take To Show Symptoms Of Hiv

Stage : Acute Hiv Infection

Within 2 to 4 weeks after infection with HIV, about two-thirds of people will have a flu-like illness. This is the bodys natural response to HIV infection.

Flu-like symptoms can include:

  • Swollen lymph nodes

These symptoms can last anywhere from a few days to several weeks. But some people do not have any symptoms at all during this early stage of HIV.

Dont assume you have HIV just because you have any of these symptomsthey can be similar to those caused by other illnesses. But if you think you may have been exposed to HIV, get an HIV test.

Heres what to do:

How Does Chronic Hiv Affect The Body

Anvisa aprova primeiro tratamento para HIV com apenas um comprimido

The chronic HIV stage is known as the latent or asymptomatic stage. During this stage, a person usually wont have as many symptoms as they did during the acute phase. This is because the virus doesnt multiply as quickly.

However, a person can still transmit HIV if the virus is left untreated and they continue to have a detectable viral load. Without treatment, the chronic HIV stage can last for many years before advancing to AIDS.

Advances in antiretroviral treatments have significantly improved the outlook for people living with HIV. With proper treatment, many people who are HIV-positive are able to achieve viral suppression and live long, healthy lives. Learn more about HIV and life expectancy.

A normal CD4 count ranges from approximately 500 to 1,600 cells per cubic millimeter of blood in healthy adults, according to HIV.gov.

A person receives an AIDS diagnosis when they have a CD4 count of fewer than 200 cells/mm3.

A person may also receive an AIDS diagnosis if theyve had an opportunistic infection or another AIDS-defining condition.

People with AIDS are vulnerable to opportunistic infections and common infections that may include tuberculosis, toxoplasmosis, and pneumonia.

People with weakened immune systems are also more susceptible to certain types of cancer, such as lymphoma and cervical cancer.

The survival rate for people with AIDS varies depending on treatment and other factors.

Don’t Miss: Ite Hearing Aids With Bluetooth

What Should I Do If I Need To Clean Up Blood

HIV does not usually survive long outside of the body, but contact with blood should be avoided.

Hepatitis C can survive in dried blood at room temperature for several weeks, and hepatitis B can survive in dried blood for around a week outside the body.

To clean up blood that has been spilled, wear rubber gloves and mop up the liquid using bleach and warm water . Use warm, soapy water to clean away blood spilled on someones body.

Put the waste, used gloves and bloodied clothes in a plastic bag, seal and throw away.

How A Weak Immune System Affects Your Skin

For some people with HIV, skin conditions are one of the most obvious signs of infection. Skin conditions can appear in the earliest stage of HIV, but may increase in frequency as the disease progresses.

HIV weakens your immune system, so your body is more likely to develop infection since it cant fight disease effectively. Common skin conditions that people with HIV experience include:

  • Bacterial infections
  • Inflammatory dermatitis

Inflammatory dermatitis can take many forms, and its common for people with HIV. Dermatitis can appear like areas of dry skin or red and itchy patches. Some examples of skin infections that people with HIV may contract include syphilis, oral thrush, and shingles.

Another condition that can develop if you have HIV is lipodystrophy. HIV can cause fat distribution in the body to change, resulting in fat loss around the face or fat buildup between the shoulder blades or elsewhere.

Taking antiretroviral medications for HIV generally helps reduce the number of skin conditions that people with HIV develop. Along with taking medication, getting regular skin exams and seeking treatment for specific skin conditions can help them from getting worse. For patients bothered by fat loss from HIV lipodystrophy, Sculptra® Aesthetic at Z-Roc Dermatology is an injectable filler to fill contours and improve your appearance.

Trust our team for all your skin care needs. Make an appointment at Z-Roc Dermatology online or call our office today.

Don’t Miss: Can An Undetectable Person Transmit Hiv

Stage : Clinical Latency

In this stage, the virus still multiplies, but at very low levels. People in this stage may not feel sick or have any symptoms. This stage is also called chronic HIV infection.

Without HIV treatment, people can stay in this stage for 10 or 15 years, but some move through this stage faster.

If you take HIV medicine every day, exactly as prescribed and get and keep an undetectable viral load, you can protect your health and have effectively no risk of transmitting HIV to your sexual partner.

But if your viral load is detectable, you can transmit HIV during this stage, even when you have no symptoms. Its important to see your health care provider regularly to get your viral load checked.

Dont Miss: Does Walgreens Do Hiv Testing

Popular Articles
Related news