Development of COVID-19 testsCOVID-19 spreads rapidly and occurs through inhalation of respiratory droplets or aerosol particles contaminated with SARS-CoV-2. The virus occurs on the mucous membranes of the nose, mouth, or eyes through spray and splash; or through direct contact with SARS-CoV-2-cont
The rapid strep test (RST) is a rapid antigen detection test (RADT) that is widely used clinically to aid in the diagnosis of bacterial pharyngitis caused by group A strep (GAS), sometimes called strep throat. There are several types of rapid strep tests in use, each using a different technique. How
You can contact your local or state health department or visit the department's website for information about testing. If you have symptoms of COVID-19 or have been exposed to someone with COVID-19, you should get tested. If you have symptoms of COVID-19, please contact your healthcare provider to r
What are the unusual symptoms of COVID-19?· Answer from Daniel C. DeSimone, MD· Coronavirus disease 2019 (COVID-19) can cause a variety of signs and symptoms. The most common are fever, cough and tiredness.· Other symptoms include:· • Shortness of breath or difficulty
I've heard about antibody testing for COVID-19. What is antibody testing? Is it the same as testing to diagnose COVID-19?With all the talk about coronavirus disease 2019 (COVID-19) testing, it's not surprising that there's confusion about tests and how they differ. Antibody testing is usually done t
At this point in the pandemic, chances are you or someone you know has been tested for COVID-19 at least once. But do you know which test you took and the pros and cons of these different tests?I'm a molecular biologist and since April 2020, I've been part of the team on an NIH-funded project called
Testing for COVID-19 has become part of the new normal. Maybe you have symptoms and wonder if it's COVID-19. Or you are planning to travel and need to show a negative test result. Whatever your reason for testing, you may be wondering about PCR vs. antigen testing and which type is right for you.Mol
Recently, high-profile public figures have received unusually rapid test results, including Tesla CEO Elon Musk. "Some very fake things are happening," Musk tweeted. "Tested four times for COVID-19 today. Two tests came back negative; two came back positive. Same machine, same test, same nurse."Anot
Antigen tests look for viral proteins rather than the genetic material of the virus. They cannot detect very small amounts of virus, so you need a higher amount of virus in your sample to get a positive result. This means you're most likely to get accurate results when you have the most virus in you
A test commonly used to identify the presence of starch in a sample is the iodine test. One of the two components of starch, specifically amylose, reacts with iodine to produce the dark blue color. While the presence of simple carbohydrates can also be detected using Benedict's solution, starches an
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