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Different option HIV test online

Testing for HIV antibodies

The HIV test is the most appropriate test for HIV diagnosis in adults. Antibody test are affordable and incredibly good. The ELISA (enzyme immunoassay) antibody also known as EIA (enzyme immunoassay) was the initial HIV test being widespread.

So, how antibody tests deliver results?

When a person is infected with HIV, their entire body reacts by producing unique protein that fights infection, known as antibodies. An HIV antibody test looks for these antibodies in the blood, saliva or urine. If you are HIV antibodies, indicating that a person has HIV. There are only two exceptions to this rule:

Babies given birth to a person infected with HIV antibodies mother kept her mother about eighteen months suggests that upcoming test positive HIV test, but actually are negative. Usually, children born to HIV-positive mothers receive a PCR test (see below) after birth.

Some people who took part in studies of HIV vaccines may have anti-HIV effects, even if they have contracted the virus.

A number of notable people produce antibodies against HIV within 6-12 weeks after exposure to the HIV virus. In very rare cases, your may have a period of six months, and there are almost always very specific causes of antibodies in development so late, for example, other autoimmune diseases. It is very unlikely that anyone requires more than six months to develop antibodies.

A three-month window period?

The latency period “is a term used to explain the period of time between HIV infection and antibody production. During this period, an antibody test can provide an end result” false negative “, meaning that the test will be negative, even though the person contracted HIV. to avoid false negative results, a second test after 3 months suggested possible contact with a person infected with HIV ..

A negative test three months more often suggest that a person has not been infected with HIV. Someone who is tested and remains negative after six months and were not at risk of HIV infection, meanwhile, meaning they are not infected with HIV.

It is very important to note that if a person is infected with HIV, they can still transmit the virus to others during the window period.

How are correct antibody tests?

Antibody tests are absolutely accurate when it comes to detect the presence of HIV antibodies. ELISAs are certainly sensitive and can detect a small amount of anti-HIV antibodies. However, this level means higher sensitivity specificity (the ability to separate antibodies from other antibodies HIV) is slightly reduced. It is for this reason a truly modest chance that a result could return as “false positive”.

A false positive result means that even if a person could not be infected with HIV, the antibody test can return positive. All positive test results are tracked by a confirmatory test, for example:

A Western blot test – a test oldest but most accurate confirmatory antibody. It is really difficult to manage and can even generate indeterminate results if a person carries a transient infection with a different virus.

An indirect immunofluorescence – As the Western blot, however, a microscope is used to detect antibodies to HIV.

Line Immunoassay – Widely used in the European Union. Minimizes the risk of sample contamination and is as accurate as the Western Blot test.

A second ELISA – In resource-poor settings with relatively high frequency, a second ELISA are useful for control analysis. The second test will often be a variety of commercial manufacturer and make use of an alternative recognition technology to first.

When two tests are combined, the possibility of an incorrect result may be less than.1%.

Rapid HIV test

123 Rapid Home Test (HIV-1/2)

These HIV tests use exactly the same technology as ELISA tests, but instead of subjecting the sample to the clinic to be tested, rapid home test produces a result in just twenty minutes.

Rapid tests for use in HIV home a sample of blood or oral fluid. They are very easy to use and does not require laboratory facilities or staff.

All positive results of a rapid HIV test should be monitored using a confirmatory test, the final results usually takes a few days to a few weeks.

Antigen test (P24)

Antigens are substances present in a foreign body or outbreaks resulting antibody production in the body. The antigen found in HIV often brings about an antibody response is the p24 protein. Early in HIV infection, P24 is overproduced and is detected in serum (even after HIV is fully established in the body, eventually reduce to undetectable levels).

P24 antigen tests are generally not used for the common HIV diagnosis, because they have a very low sensitivity and function just before antibodies are produced in the immediately following HIV infection period. Is currently most often used as a component of testing “fourth generation”.

Fourth production testing

As for the date HIV testing combined p24 antigen tests with regular testing of antibodies scale back the diagnostic window “. The detection of significant antibody and antigen P24 at the same time has the main advantage of allowing earlier detection HIV and more accurate.

In the US, testing fourth generation will be the main suggestion for HIV testing among people, but are not provided by all test sites. In June 2010, the FDA approved the first test fourth generation in the United States.

PCR

A PCR (Polymerase chain reaction test) may recognize the HIV genetic material instead of antibodies to the virus, and thus can not determine HIV in blood in just two or three weeks after infection. The test is also considered an HIV NAAT (nucleic amplification tests acids) or a viral load test.

Babies born to HIV-positive parents are generally applied the PCR test, simply because they support the mother’s antibodies for several months for a test incorrectly antibodies. The blood supply is usually in the most developed countries in the world, HIV testing by PCR tests. However, it is not normally used for HIV testing in men and women, as they are very expensive and difficult to manage and interpret antibody testing regularly.

HIV test at home and HIV test at home

Often suggesting that HIV testing is performed by a health professional, yet in many countries test kits at home and home tests are readily available. The quality of the test kits if home have improved and are as safe as the home of the test sample and trial.

Sampling at home

Using a home collection kit, an individual can take a small sample (usually a blood sample) and send it to the clinic for screening. They are able to call the final results within days. If the result is positive, a trained counselor will provide emotional support and recommendations. The most important advantages of home sampling are convenience, speed, privacy and anonymity.

The home test

To test at home means that a man or woman to perform a test of quick home test for HIV antibodies at home. The individual takes either a blood or saliva and can interpret the results in minutes. A positive confirmation of a new blood test is required at a clinic.

In many countries it is legal to sell HIV test kits for the public. If a test purchase online, make sure that the test equipment is authentic and provide accurate results. Most online sites that offer serious home test kits for HIV, have

There is currently a debate about the kits can be purchased in the US and the UK also. The opposition rejects the legalization of the sale of home test kits in the UK due to post-discharge test is not enough.

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