How Is Hiv Transmitted Or Spread
The following are the means by which the HIV virus is spread:
Vertical transmission. HIV can be spread to babies born to, or breastfed by, mothers infected with the virus.
Sexual contact. In adults and adolescents, HIV is spread most commonly by sexual contact with an infected partner. The virus enters the body through the lining of the vagina, vulva, penis, rectum, or abraded or irritated tissues in the lining of the;mouth through sexual activity.
Blood contamination. HIV may also be spread through contact with infected blood. However, due to the screening of donated blood for evidence of HIV infection, the risk of acquiring HIV from blood transfusions is extremely low.
Needles. HIV is frequently spread by sharing needles, syringes, or drug use equipment with someone who is infected with the virus. Transmission from patient to health care worker, or vice-versa, through accidental sticks with contaminated needles or other medical instruments, is rare.
No known cases of HIV/AIDS have been spread by the following:
Enlarged lymph nodes
An HIV-infected child is usually diagnosed with AIDS when the immune system becomes severely damaged or other types of infections occur. As the immune system deteriorates, complications begin to develop. The following are some common complications, or symptoms, of the onset of AIDS. However, each child may experience symptoms differently. Symptoms may include:
Hiv: How Its Transmitted
HIV is spread through certain body fluids, such as blood, semen , rectal fluids, vaginal fluids, and breast milk, according to the U.S. Department of Health and Human Services AIDS.gov website. The virus can be transmitted when these fluids in an infected person come into contact with mucous membranes in the rectum, vagina, penis, or mouth of another person.
While HIV can be spread during anal or vaginal sex, anal sex is riskier because there is more trauma and irritation to the mucous membranes, says Beverly Sha, MD, professor of medicine in the division of infectious diseases at Rush University Medical Center in Chicago.
Although the risk is low, HIV can also be spread through oral sex. HIV transmission can happen during ejaculation into the mouth, or if there are mouth ulcers, bleeding gums, genital sores, or other sexually transmitted diseases present, according to the Centers for Disease Control and Prevention.
Using condoms during sex lowers the risk of HIV transmission. When they are used properly, its clear they offer significant protection, Dr. Sha says. However, condoms can fail when they break, if theyre too old, or if they are not used correctly.
The virus can also spread if infected fluids come into contact with damaged tissue, such as a cut in the skin, or if infected blood is transferred from a needle or syringe. Doing injection drugs with someone who is infected and sharing equipment is high risk. HIV can be found in a used needle for as long as 42 days.
Which Bodily Fluids Can Pass Hiv
Bodily fluid is a blanket term that refers to any of the liquids floating around inside the human body. Were talking blood, sweat, tears, semen, vaginal fluids, urine, and all the rest.
HIV does not spread throughout the body evenly. Some bodily fluids have it, but most dont. In fact, HIV can only be transmitted to another person through these three types of bodily fluids:
- sexual fluid
- breast milk
HIV cannot be passed from person to person via other fluids like tears, saliva, vomit, or feces. This is an incredibly important point about HIV transmission that is often misunderstood.
For decadesand still todaypeople have worried they might catch HIV from a toilet seat, perhaps by touching the urine or fecal matter of an HIV-positive person. This absolutely does not happen.
People have also worried they might catch the virus from the saliva of an HIV-positive person who kisses them or spits on them. In fact, this fear is so pervasive that some states have made it a felony for people with HIV to spit at or bite someone else. Those laws are based on outdated science.
The only way it would be possible to transmit HIV through saliva is if the HIV-positive person had bleeding gums or sores, and somehow that bloody saliva got into the bloodstream of the HIV-negative person. However, experts agree that the risk of this happening is so statistically tiny that its not worth worrying about.
So, to recap:
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How Is Hiv Spread Through Blood
You can become infected if you have contact with the blood of someone who has HIV. Blood-borne infection with HIV can occur through:
- sharing injection equipment when using drugs
- getting tattoos or body piercings with unsterilized needles
- accidental needle sticks
- splashing blood in your eyes
HIV is NOT spread by blood passed through insect bites.
If you inject drugs, the best thing to do is to use new or sterilized injection equipment every time. You can also take a daily medication called pre-exposure prophylaxis to lower your risk of HIV. .
Other Types Of Hiv Risks
Another less-common way HIV is transmitted in the United States is needlestick injury. This typically happens when a health care worker is accidentally jabbed by a used needle or syringe that contains HIV-positive blood. Again, this is very rare.
Thirty years ago, blood transfusions and organ donations were an especially dangerous way that some people acquired HIV. Nowadays, donated blood and organs are routinely tested.
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How To Protect Yourself
Since there is still a chance that you could get infected with HIV through oral sex, you should always take precautions. Here is what you can do to lower your risk:
Do not let a male partner ejaculate in your mouth. You can do this if you remove your mouth from their penis before they ejaculate, or if you use a condom.
Use a condom or dental dam. A dental dam is a thin square piece of latex or silicone that you place over the vagina or anal area during oral sex. You can also cut a latex condom lengthwise and use it the same way.
Both of these barriers also lower the risk of infection from other STDs such as gonorrhea of the throat or hepatitis. Use a new one every time you have oral sex. Check the expiration date on the package, and make sure there are no tears or defects.
Don’t use oil-based products like baby oil, lotion, petroleum jelly, or cooking oil on condoms or dental dams because that can cause them to break. If you need lubrication, use a water-based or silicone-based product instead. Always use a condom or dental dam during your period since the virus can be present in menstrual blood.
Don’t brush your teeth just before oral sex. If you do, your mouth or gums may bleed, which raises chances of infection.
Skip oral sex during risky times. This includes a time when you have sores around your mouth, genitals, or anus , gum damage, a throat infection, or after dental work.
Hiv And Hepatitis B In Saliva
Hepatitis B is spread through contact with body fluids infected with the virus, such as direct contact with blood or open wounds. Therefore, it can be spread through sharing a toothbrush, but not through sharing eating utensils, kissing, coughing, or sneezing.
Hepatitis C requires;blood exposure, and is typically spread through the use of shared needles or other equipment used to prepare and inject drugs. Hepatitis A requires some form of fecal exposure , and is not spread via saliva or kissing.
Kissing is, in general, not considered a risk factor for;HIV transmission. It would only be a risk if bleeding occurred or open sores were present.
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Can Kissing An Hiv Positive Person Cause An Hiv Infection
No, a person cannot spread HIV through kissing. Although HIV can be present in very small amounts in saliva, there are proteins and enzymes found naturally in saliva which reduce the infectiousness of HIV, making it impossible for the virus to spread through kissing.
HIV can only survive in certain body fluids such as blood, semen, vaginal fluid, anal mucous and breast milk – HIV spreads through the exchange of these bodily fluids. Sexual intercourse, including oral and anal sex, without the use of a condom is the most common way that HIV spreads. HIV can also spread by sharing needles with someone who is infected with the virus, and very rarely it can be passed from an HIV positive pregnant woman to her unborn baby.
If you think you may have been exposed to HIV in the last three days, you should contact our local sexual health clinic immediately to get PEP, that can prevent infection even after exposure, if taken within 72 hours. If you believe the exposure might have happened earlier, make sure to consider the window period before taking an HIV test.
Can Hiv Be Transmitted Through Oral Sex
Yes, but the risk is relatively low.
HIV is transmitted through seminal and vaginal fluids, including menstrual fluids. The virus can enter the body through the bloodstream or by passing through delicate mucous membranes, such as inside the vagina, rectum or urethra.
If a person gives fellatio and has bleeding gums, a cut, or an ulcer inside their mouth, HIV could enter their bloodstream through infected fluid. This could also happen if infected fluid from a woman gets into the mouth of her partner during oral sex.
Using a;condom during sex, including oral and anal sex, is the best way to prevent;sexually transmitted infections , including HIV. Avoid using an oil-based lubricant, such as Vaseline or baby oil, because they can weaken the condom and increase the;risk of it splitting.
You can use a dental dam to cover the anus or female genitals during oral sex. A dental dam is a latex or polyurethane square, measuring about 15cm by 15cm. It acts as a barrier to help stop STIs passing from one person to another.
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Can Analingus Result In Hiv Transmission
For this answer, we turn back to Bob Frascino, M.D.:
“Although there have been no documented cases of acquiring HIV from rimming or being rimmed, there are a number of other significant STIs that can easily be transmitted through rimming, including hepatitis A, herpes, and intestinal parasites. You can decrease the risk by using a dental dam barrier .
“As for whether to rim or not, only you can decide what level of risk you are willing to take. At least now you have the facts.”
Is There A Risk Of Hiv Transmission When Getting A Tattoo Or A Body Piercing Or While Visiting The Barber Or Hairdresser
Persons who carry out body-piercing and tattoos should follow procedures called “Universal Precautions“, which are designed to protect both workers and their customers from the transmission of blood borne infections such as HIV and Hepatitis B. ;The guidelines state that any instrument designed to penetrate the skin such as tattoo or acupuncture needles should be either used only once and discarded , or should be thoroughly cleaned and sterilized after each use.
When visiting the barber there is no risk of infection unless the skin is cut and if there is a transfer of infected blood. If the instruments are contaminated with infected blood and are not sterilized between clients there is a risk of HIV transmission.
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Doubts Persist Even When Risk Is Statistically Zero
Despite increased public awareness about HIV, there remains a lot of confusion about how you can get infected and how you cannot. For example, even though people understand that you cant get HIV from utensils, there are many who will experience a twinge of concern if they learned that the chef of their favorite restaurant has HIV.
HIV has a way of spurring anxieties in even the best of us and, with it, our sense of reason. Relieving those anxieties often requires us to do more than just lay out the rules. Instead, we need to understand what conditions are required for an infection to take place and why things like hugging, touching, sneezing, or kissing simply do not satisfy those conditions.
Myth : You Cant Get Hiv If Youre On Birth Control
The pill might protect you from an unwanted pregnancy, but its no match for HIV. Same goes for other types of birth control, like IUDs, patches, and rings.
If you want to get down without risking HIV transmission, your best bet is to use a condom or other barrier method or PrEP.
Nope, swapping spit doesnt spread HIV . Feel free to hold hands, hug, and share a soda while youre at it.
HIV can be transmitted only through:
- anal mucous
- breast milk
Saliva doesnt carry enough traces of the virus to worry about, and research as far back as the mid- to late 80s has found that kissing is not a risk factor for transmission of HIV.
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How Do I Protect Myself From Hiv
There are a number of ways you can protect yourself from HIV, including:
- using a condom every time you have vaginal, anal or oral sex
- in some countries PrEP is available. This is a course of HIV drugs which if taken consistently as advised by your healthcare professional prevents HIV infection through sex
- avoiding sharing needles, syringes and other injecting equipment;
- taking HIV treatment if you are a new or expectant mother living with HIV, as this will;dramatically reduce the risk of passing HIV to your baby during pregnancy, childbirth and breastfeeding
- asking your healthcare professional if the blood product you are receiving has been tested for HIV
- taking precautions if you are a healthcare worker, such as wearing protection , washing hands after contact with blood and other bodily fluids, and safely disposing of sharp equipment
- if you think you have been exposed to HIV you may be able to access PEP, a 4-week course of ARV drugs taken after possible HIV exposure to prevent HIV infection. You must start PEP within 72 hours of possible exposure to be effective.
For more detailed information on how to prevent HIV infection visit the relevant page from the;listed below:
How Hiv Is Spread
The most common way that HIV is spread is through sexual intercourse, including oral and anal sex.
The virus can also be spread through sharing needles, and;it can be passed from an infected pregnant woman to her unborn baby.
But steps can be taken to reduce the likelihood of HIV being passed on to a;baby, making transmission in this way rare in the UK.
For example, the risk of transmission can be reduced by:
- giving antiretroviral medication to;a mother and her newborn baby
- giving birth by caesarean section;
- not breastfeeding
You can’t catch HIV from:
- giving mouth-to-mouth resuscitation
- being sneezed on by someone with HIV
- sharing baths, towels or cutlery with someone with HIV
- swimming in a pool that’s been used by someone with HIV
- sitting on a toilet seat that someone with HIV has sat on
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What Is The Risk From Oral Sex
According to Public Health England, around 1-3% of sexual HIV transmissions in the UK are because of oral sex. Other studies found that the risk is very low but is not zero.
Unprotected anal and vaginal sex leads to far more HIV infections than oral sex.
The risks are higher if the person giving oral sex has:
- cuts, sores or abrasions in their mouth or gums
- a sore throat or infection in the mouth or throat.
Or if the person receiving oral sex is:
- HIV positive
Am I At Higher Risk If I Have Sex With A Member Of The Same Sex
HIV is transmitted sexually regardless of your sexual preference. Note however, that worldwide there is a higher prevalence of the virus in certain groups because of their sexual practices and therefore having unsafe sex with someone from one of these groups places you at a higher risk of contracting the virus. Men who have sex with men, commercial sex workers, and people who have a sexually transmitted infection are examples of such groups.
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Contaminated Blood Transfusions And Organ/tissue Transplants
- receiving blood transfusions, blood products, or organ/tissue transplants that are contaminated with HIV. This risk is extremely small because most countries test blood products for HIV first.
If adequate safety practices are not in place, healthcare workers can also be at risk of HIV from cuts made by a needle or sharp object with infected blood on it. However, the risk of occupational exposure, is very low in most countries.;
If you think you have been exposed to HIV, the only way to find out if you have HIV is to have an HIV test.
Infectious Diseases In Saliva
Infectious diseases can be spread through several routes of transmission. Oral transmission refers to the spreading of microbes through saliva or shared foods and drinks.
When a person accidentally consumes microbe-contaminated items, such as saliva during kissing, the swallowing action of the tongue wipes the microbes against the back of the throat, allowing the microbe to enter the body.
Infections, such as mononucleosis caused by Epstein-Barr virus , and cytomegalovirus , are examples of infections spread via oral transmission from virus-containing saliva.
Other infectious microbes that spread through saliva do so by sticking to the inner surface of the cheeks and mouth, the tongue, or teeth. An example is the bacterium Streptococcus, which can cause an array of infections, including gum disease and strep throat.
The surfaces of the respiratory tract are continuous and made up of similar tissues. Microbes that are found in the saliva can generally be found in other parts of the respiratory tract, including the nose and throat. Therefore, even colds and flu can be spread through the saliva.
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