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