Question

How were the people tested to determine if they are COVID 19 positive or negative

Answer 1

By the allergic reactions they test the allergic reactions by sealing their mouth or nose

Answer 2

PCR (polymerase chain reaction) test: This is the most widely used test for COVID-19. It involves collecting a nasal or throat swab from the patient, which is then sent to a laboratory for analysis.

Rapid antigen test: This is a quick and inexpensive test that can be done at the point of care, such as in a doctor's office or a pharmacy.

Antibody test: This test looks for antibodies that the body produces in response to the virus. It can be done using a blood sample.

Step-by-step explanation: