Why does the CDC not recommend testing for herpes?
CDC does not recommend herpes testing for people without symptoms. This is because diagnosing genital herpes in someone without symptoms has not shown any change in their sexual behavior (e.g., wearing a condom or not having sex) nor has it stopped the virus from spreading.
Is there a definitive test for herpes?
PCR test: The PCR test can tell if you have genital herpes even if you don’t have symptoms. The PCR test looks for pieces of the virus’s DNA in a sample taken from cells or fluids from a genital sore or the urinary tract. This is a commonly used test to diagnose genital herpes and is very accurate.
What is the most accurate test for herpes?
Today, the most accurate test for asymptomatic herpes infections is a blood test. This blood test, called a serum antibody test, can detect both HSV-1 and HSV-2 viruses. After you become infected with herpes, your body fights back against the virus by producing antibodies.
Can you test negative for herpes and still have it?
A “negative” viral culture or PCR result could mean you don’t have genital herpes. But in some cases, a person could still have genital herpes and a negative result. That’s likely due to other factors related to how much virus there is in the sores. You don’t need to do anything to prepare for these tests.
How accurate is a herpes swab test?
The cutoff for a positive result on the HerpeSelect test, manufactured by Quest Diagnostics, is 1.1. A 2005 study published in the journal BioMed Central Infectious Disease found that index values above 3.5 yielded over 90 percent accuracy — but scores between 1.1 and 3.5 had around a 50 percent chance of being wrong.
What can mimic herpes?
Noninfectious conditions that can mimic genital herpes include Reiter syndrome, contact dermatitis, Crohn disease, Behçet syndrome, trauma, erythema multiforme, and lichen planus.
Can herpes be confused with something else?
Herpes symptoms can be mistaken for many other things, including: A different STI which causes visible lesions, such as Syphilis or genital warts (HPV) Irritation caused by shaving. Ingrown hairs.
Will a blood test detect herpes if its dormant?
If you have the herpes virus and your body has produced antibodies, it can be detected on a blood test, even if you have no symptoms. The only time the virus might not be detected on a test (after you’ve contracted it) is if you’ve been tested too early.
How often are herpes swab tests wrong?
Meanwhile, the CDC and the US Preventive Services Task Force concur that the most widely available herpes test, called HerpeSelect, should not be used to screen asymptomatic people because of its high risk of false positives: Up to 1 in 2 positive tests could be false, according to the USPSTF’s most recent guidelines.