HIV/AIDS
Overview
Acquired immunodeficiency
syndrome (AIDS) is a chronic, potentially life-threatening disease caused by
the human immunodeficiency virus (HIV). By damaging your immune system, HIV
interferes with your body's ability to fight infection and disease.
HIV is a sexually
transmitted infection (STI). It can also be spread by contact with infected
blood or from mother to child during pregnancy, childbirth or breast-feeding.
Without medication, it may take years before HIV weakens your immune system to
the point that you have AIDS.
There's no cure for
HIV/AIDS, but medications can dramatically slow the progression of the disease.
These drugs have reduced AIDS deaths in many developed nations.
Symptoms
The symptoms of HIV and AIDS
vary, depending on the phase of infection.
Primary infection
(Acute HIV)
Some people infected by HIV
develop a flu-like illness within two to four weeks after the virus enters the
body. This illness, known as primary (acute) HIV infection, may last for a few
weeks. Possible signs and symptoms include:
Fever
Headache
Muscle aches and joint pain
Rash
Sore throat and painful
mouth sores
Swollen lymph glands, mainly
on the neck
Diarrhea
Weight loss
Cough
Night sweats
These symptoms can be so
mild that you might not even notice them. However, the amount of virus in your
bloodstream (viral load) is quite high at this time. As a result, the infection
spreads more easily during primary infection than during the next stage.
Clinical latent
infection (Chronic HIV)
In this stage of infection,
HIV is still present in the body and in white blood cells. However, many people
may not have any symptoms or infections during this time.
This stage can last for many
years if you're not receiving antiretroviral therapy (ART). Some people develop
more severe disease much sooner.
Symptomatic HIV
infection
As the virus continues to
multiply and destroy your immune cells — the cells in your body that help fight
off germs — you may develop mild infections or chronic signs and symptoms such
as:
Fever
Fatigue
Swollen lymph nodes — often
one of the first signs of HIV infection
Diarrhea
Weight loss
Oral yeast infection
(thrush)
Shingles (herpes zoster)
Pneumonia
Progression to AIDS
Thanks to better antiviral
treatments, most people with HIV in the U.S. today don't develop AIDS.
Untreated, HIV typically turns into AIDS in about 8 to 10 years.
When AIDS occurs, your
immune system has been severely damaged. You'll be more likely to develop
opportunistic infections or opportunistic cancers — diseases that wouldn't
usually cause illness in a person with a healthy immune system.
The signs and symptoms of
some of these infections may include:
Sweats
Chills
Recurring fever
Chronic diarrhea
Swollen lymph glands
Persistent white spots or
unusual lesions on your tongue or in your mouth
Persistent, unexplained
fatigue
Weakness
Weight loss
Skin rashes or bumps
When to see a doctor
If you think you may have
been infected with HIV or are at risk of contracting the virus, see a doctor as
soon as possible.
Causes
HIV is caused by a virus. It
can spread through sexual contact or blood, or from mother to child during
pregnancy, childbirth or breast-feeding.
How does HIV become
AIDS?
HIV destroys CD4 T cells —
white blood cells that play a large role in helping your body fight disease.
The fewer CD4 T cells you have, the weaker your immune system becomes.
You can have an HIV
infection, with few or no symptoms, for years before it turns into AIDS. AIDS
is diagnosed when the CD4 T cell count falls below 200 or you have an
AIDS-defining complication, such as a serious infection or cancer.
How HIV spreads
To become infected with HIV,
infected blood, semen or vaginal secretions must enter your body. This can
happen in several ways:
By having sex. You
may become infected if you have vaginal, anal or oral sex with an infected
partner whose blood, semen or vaginal secretions enter your body. The virus can
enter your body through mouth sores or small tears that sometimes develop in
the rectum or vagina during sexual activity.
By sharing needles.
Sharing contaminated IV drug paraphernalia (needles and syringes) puts you at
high risk of HIV and other infectious diseases, such as hepatitis.
From blood
transfusions. In some cases, the virus may be transmitted
through blood transfusions. American hospitals and blood banks now screen the
blood supply for HIV antibodies, so this risk is very small.
During pregnancy or
delivery or through breast-feeding. Infected mothers can
pass the virus on to their babies. Mothers who are HIV-positive and get
treatment for the infection during pregnancy can significantly lower the risk
to their babies.
How HIV doesn't
spread
You can't become infected
with HIV through ordinary contact. That means you can't catch HIV or AIDS by
hugging, kissing, dancing or shaking hands with someone who has the infection.
HIV isn't spread through the
air, water or insect bites.
Risk factors
Anyone of any age, race, sex
or sexual orientation can be infected with HIV/AIDS. However, you're at
greatest risk of HIV/AIDS if you:
Have unprotected sex. Use
a new latex or polyurethane condom every time you have sex. Anal sex is more
risky than is vaginal sex. Your risk of HIV increases if you have multiple sexual
partners.
Have an STI.
Many STIs produce open sores on your genitals. These sores act as doorways for
HIV to enter your body.
Use IV drugs.
People who use IV drugs often share needles and syringes. This exposes them to
droplets of other people's blood.
Complications
HIV infection weakens your
immune system, making you much more likely to develop many infections and
certain types of cancers.
Infections common to
HIV/AIDS
Pneumocystis
pneumonia (PCP). This fungal infection can cause severe
illness. Although it's declined significantly with current treatments for
HIV/AIDS, in the U.S. PCP is still the most common cause of pneumonia in people
infected with HIV.
Candidiasis (thrush).
Candidiasis is a common HIV-related infection. It causes inflammation and a
thick, white coating on your mouth, tongue, esophagus or vagina.
Tuberculosis (TB). In
resource-limited nations, TB is the most common opportunistic infection
associated with HIV. It's a leading cause of death among people with AIDS.
Cytomegalovirus.
This common herpes virus is transmitted in body fluids such as saliva, blood,
urine, semen and breast milk. A healthy immune system inactivates the virus,
and it remains dormant in your body. If your immune system weakens, the virus
resurfaces — causing damage to your eyes, digestive tract, lungs or other
organs.
Cryptococcal
meningitis. Meningitis is an inflammation of the
membranes and fluid surrounding your brain and spinal cord (meninges).
Cryptococcal meningitis is a common central nervous system infection associated
with HIV, caused by a fungus found in soil.
Toxoplasmosis.
This potentially deadly infection is caused by Toxoplasma gondii, a parasite
spread primarily by cats. Infected cats pass the parasites in their stools,
which may then spread to other animals and humans. Toxoplasmosis can cause
heart disease, and seizures occur when it spreads to the brain.
Cancers common to
HIV/AIDS
Lymphoma.
This cancer starts in the white blood cells. The most common early sign is
painless swelling of the lymph nodes in your neck, armpit or groin.
Kaposi's sarcoma. A
tumor of the blood vessel walls, Kaposi's sarcoma usually appears as pink, red
or purple lesions on the skin and mouth. In people with darker skin, the
lesions may look dark brown or black. Kaposi's sarcoma can also affect the
internal organs, including the digestive tract and lungs.
Other complications
Wasting syndrome.
Untreated HIV/AIDS can cause significant weight loss, often accompanied by
diarrhea, chronic weakness and fever.
Neurological
complications. HIV can cause neurological symptoms such as
confusion, forgetfulness, depression, anxiety and difficulty walking. HIV-associated
neurocognitive disorders (HAND) can range from mild symptoms of behavioral
changes and reduced mental functioning to severe dementia causing weakness and
inability to function.
Kidney disease.
HIV-associated nephropathy (HIVAN) is an inflammation of the tiny filters in
your kidneys that remove excess fluid and wastes from your blood and pass them
to your urine. It most often affects black or Hispanic people.
Liver disease.
Liver disease is also a major complication, especially in people who also have
hepatitis B or hepatitis C.
Prevention
There's no vaccine to
prevent HIV infection and no cure for AIDS. But you can protect yourself and
others from infection.
To help prevent the spread
of HIV:
Use treatment as
prevention (TasP). If you're living with HIV, taking HIV
medication can keep your partner from becoming infected with the virus. If you
make sure your viral load stays undetectable — a blood test doesn't show any
virus — you won't transmit the virus to anyone else. Using TasP means taking
your medication exactly as prescribed and getting regular checkups.
Use post-exposure
prophylaxis (PEP) if you've been exposed to HIV. If you
think you've been exposed through sex, needles or in the workplace, contact
your doctor or go to the emergency department. Taking PEP as soon as possible
within the first 72 hours can greatly reduce your risk of becoming infected
with HIV. You will need to take medication for 28 days.
Use a new condom every time
you have sex. Use a new condom every time you have anal or vaginal sex. Women
can use a female condom. If using a lubricant, make sure it's water-based.
Oil-based lubricants can weaken condoms and cause them to break. During oral
sex use a nonlubricated, cut-open condom or a dental dam — a piece of medical-grade
latex.
Consider preexposure
prophylaxis (PrEP). The combination drugs emtricitabine plus tenofovir
(Truvada) and emtricitabine plus tenofovir alafenamide (Descovy) can reduce the
risk of sexually transmitted HIV infection in people at very high risk. PrEP
can reduce your risk of getting HIV from sex by more than 90% and from
injection drug use by more than 70%, according to the Centers for Disease
Control and Prevention. Descovy hasn't been studied in people who have
receptive vaginal sex.
Your doctor will prescribe
these drugs for HIV prevention only if you don't already have HIV infection.
You will need an HIV test before you start taking PrEP and then every three
months as long as you're taking it. Your doctor will also test your kidney
function before prescribing Truvada and continue to test it every six months.
You need to take the drugs
every day. They don't prevent other STIs, so you'll still need to practice safe
sex. If you have hepatitis B, you should be evaluated by an infectious disease
or liver specialist before beginning therapy.
Tell your sexual
partners if you have HIV. It's important to tell all
your current and past sexual partners that you're HIV-positive. They'll need to
be tested.
Use a clean needle. If
you use a needle to inject drugs, make sure it's sterile and don't share it.
Take advantage of needle-exchange programs in your community. Consider seeking
help for your drug use.
If you're pregnant,
get medical care right away. If you're HIV-positive, you
may pass the infection to your baby. But if you receive treatment during
pregnancy, you can significantly cut your baby's risk.
Consider male
circumcision. There's evidence that male circumcision can
help reduce the risk of getting HIV infection.
Jan Ricks Jennings, MHA,
LFACHE
Senior Consultant
Senior Management
Resources, LLC
JanJenningsBlog.Blogspot.com
412.913.0636 Cell
724.733.0509 Office
January 4, 2022
No comments:
Post a Comment