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- Overview of Testing for SARS-CoV-2 | COVID-19 | CDC
Positive viral test results indicate current infection and the person with COVID-19 should take steps to prevent spreading COVID-19 to others Negative viral test results mean the test did not detect the virus, but this doesn't rule out that the person could have an infection These results represent a snapshot of the time around specimen
- Testing for COVID-19 | COVID-19 | CDC - Centers for Disease Control and . . .
A single NAAT test can be used to confirm an antigen test result *Self-tests, or at-home tests, are antigen tests that can be taken anywhere without having to go to a specific testing site Read self-test package inserts thoroughly and follow the instructions closely when performing the test When you get tested
- Information for Diagnostic Laboratories | Rabies | CDC
The best tissue for rabies testing by any test is the brain, and rabies rule-out by the LN34 test requires a full cross-section of the brainstem and representative samples from the cerebellum Skin biopsy from the nape of the neck and saliva samples can be tested by LN34 to detect rabies in suspect antemortem human rabies cases
- Laboratory Testing for CMV and Congenital CMV
The enzyme-linked immunosorbent assay (ELISA) is the most common serologic test for measuring antibody to CMV Tests for congenital CMV in newborns Polymerase chain reaction (PCR) on saliva is the standard laboratory test for diagnosing congenital CMV infection Urine is usually collected and tested for confirmation
- Laboratory Testing for Epstein-Barr Virus (EBV)
Monospot test The Monospot test is not recommended for general use The antibodies detected by Monospot can be caused by conditions other than infectious mononucleosis Moreover, studies have shown that the Monospot produces both false positive and false negative results
- Clinical Testing and Diagnosis for Tuberculosis - CDC
It is the only kind of TB skin test solution that is FDA-approved for this test method After 48–72 hours, the skin test reaction must be examined by a trained health care worker The health care worker measures any swelling where the tuberculin was injected to determine if the reaction to the test is positive or negative
- Testing and Diagnosis for Lyme disease | Lyme Disease | CDC
Because the immune system continues to make the antibodies for months or years after an infection is gone, your blood test will remain positive after the bacteria are no longer present Unfortunately, these antibodies don’t reliably prevent re-infection should you be bitten by another infected tick About tickborne co-infections
- Measles Serology Testing | Measles (Rubeola) | CDC
Test turnaround-time for IgG avidity The turnaround–time for testing specimens for IgG avidity is 30 working days after the delivery of the specimens to the measles reference lab by the STATT laboratory Both an acute and a convalescent phase serum are recommended for PRN testing There is no established turnaround–time for measles PRN
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