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COVID-19 tests are available in private, academic, and commercial labs. They also are available for use at home. UC Davis Health has significantly increased its testing capabilities on-site by developing and validating our own בדיקת קורונה.

The most accurate COVID-19 test, also known as a molecular PCR test, involves inserting a swab of 6 inches (like an extended Q-tip) into the space between the mouth and the nose (nasopharyngeal swab) for 15 seconds before repeating the rotation several times. To ensure that the right amount of material is collected the swabbing procedure is repeated on the opposite face of the nose. The swab will then be placed in a container and sent off to the lab for testing.

Below you'll find more information from UC Davis Health experts about the various types of בדיקות קורונה PCR and who needs to be tested and why testing is essential to slow the spread.

Do I need to test for COVID-19?

Your doctor will be able to advise you on the need to test for COVID-19. If you've ever had contact with the virus, or are suffering from symptoms of COVID-19, it is suggested to test.

Experts warn that the מעבדות קורונה test will only give you your stas at the moment you take it. For example, you could have been infected for a few hours before testing but you haven't yet reached the amount which can be detected with a COVID-19 test.

A standing committee of National Academies of Sciences, Engineering, and Medicine has issued a rapid consultation with experts. The consultation covers four areas that are related to COVID-19 diagnostic tests. The topics include the benefits and disadvantages of reverse transcription polymerase chain reactions (RT-PCR) tests; the status of point-of-care tests; methods and considerations regarding certain types and sequences of tests; and the next-generation sequencing (NGS) testing. This expert consultation is quick and does not examine antibody tests.

Diagnostic tests will continue to be crucial in guiding COVID-19 treatment and surveillance for the disease. It can also assist to identify contacts and plan for the reopening of schools and the economy. An average of 30 million tests are required every week to identify individuals and their contact. Screening asymptomatic patients may need as much as 14 million tests per day according to the speedy expert advice.

Currently, RT-PCR tests which must be performed in central labs are considered to be as the best method to determine the presence of infectious virus. This may change, however as more evidence is discovered regarding antigen-based diagnostic tests as well as on other testing methods.

There are trade-offs in RT-PCR tests versus the rapid point-of-care (POC) tests that are commonly employed to identify patients who are symptomatic, says the rapid expert consultation. The tests for POC may be less sensitive. accuracy and specificity. These tests need to be conducted multiple times per week for individuals to identify and quickly isolate the cause of the problem. This is to decrease the frequency of certain ailments for instance, on campuses of colleges. A quick consultation with experts revealed that there are not many methods or measures to ensure compliance when the reporting of swift POC test results, particularly when they are administered by employers or universities. It is possible that the location and number of infected individuals may not be recorded, and the spread of the disease could continue unabated.

Rapid expert consultations can also identify situations where split-pool testing (testing a sample pool and later splitting the pool) or monitoring of wastewater (a method to test the human waste that is present in water for asymptomatic and symptoms) could prove beneficial. It also considers NGS as a possible test that is highly specific and sensitive. Some companies may be able to analyze 10,000 samples at a time with a turnaround time of 24-48 hours. It is not clear the extent to which NGS tests will have the same transport, processing and reporting issues as RT-PCR tests.