Guidelines, resources, & more
About Antibody Testing
CDC Evaluating Commercial Tests
The Center for Disease Control is currently evaluating the performance and reliability of commercially manufactured antibody tests in collaboration with numerous government agencies. The Food and Drug Administration has authorized emergency use of several antibody tests.
For more information, see here:
COVID-19 Resources, Guidelines & More
State of Balance
Sensitivity & Specificity
It’s important to recognize that sensitivity and specificity exist in a state of balance. Increased sensitivity – the ability to correctly identify people who have the disease — usually comes at the expense of reduced specificity (meaning more false-positives). Likewise, high specificity — when a test does a good job of ruling out people who don’t have the disease – usually means that the test has lower sensitivity (more false-negatives).
“Generally speaking, “a test with a sensitivity and specificity above 90% would be considered to have good diagnostic performance”
Sensitivity measures how often a test correctly generates a positive result for people who have the condition that’s being tested for (also known as the “true positive” rate). A test that’s highly sensitive will flag almost everyone who has the disease and not generate many false-negative results. (Example: a test with 90% sensitivity will correctly return a positive result for 90% of people who have the disease, but will return a negative result — a false-negative — for 10% of the people who have the disease and should have tested positive.)
Specificity measures a test’s ability to correctly generate a negative result for people who don’t have the condition that’s being tested for (also known as the “true negative” rate). A high-specificity test will correctly rule out almost everyone who doesn’t have the disease and won’t generate many false-positive results. (Example: a test with 90% specificity will correctly return a negative result for 90% of people who don’t have the disease, but will return a positive result — a false-positive — for 10% of the people who don’t have the disease and should have tested negative.)
The Team at US Med Test delivers confidence in the environment and interactions that are within your control. We utilize cutting edge technology including non-invasive testing to deliver immediate results. Our testing programs are administered by skilled, verified health care professionals that coordinate with our High Complexity CLIA Lab network to deliver consistent, affordable results.
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