Should post-exposure prophylaxis be used for people who may have been exposed to a person with the coronavirus disease?
See full answerThere is currently no FDA-approved post-exposure prophylaxis for people who may have been exposed to COVID-19. For information about registered clinical trials of investigational therapeutics for pre or post exposure prophylaxis of SARS-CoV-2 infection, visit ClinicalTrials.gov.For more information on movement restrictions, monitoring for symptoms, and evaluation after possible exposure to COVID-19, see Interim US Guidance for Risk Assessment and Public Health Management of Persons with Potential Coronavirus Disease 2019 (COVID-19) Exposure in Travel-associated or Community Settings and Interim U.S Guidance for Risk Assessment and Public Health Management of Healthcare Personnel with Potential Exposure in a Healthcare Setting to Patients with Coronavirus Disease 2019 (COVID-19).
What does a negative COVID-19 virus test result mean if you have symptoms of COVID-19?
If you test negative for the virus that causes COVID-19, the virus was not detected.• If you have symptoms of COVID-19: – You may have received a false negative test result and still might have COVID-19. You should isolate away from others. – Contact your healthcare provider about your symptoms, especially if they worsen, about follow-up testing, and how long to isolate.
Does an antibody test diagnose an active COVID-19?
Antibodies can take several days or weeks to develop after you have an infection and may stay in your blood for several weeks after recovery. Because of this, antibody tests should not be used to diagnose an active coronavirus infection.
Will the vaccine cause me to have a positive COVID-19 antibody test?
If your body develops an immune response to vaccination, which is the goal, you may test positive on some antibody tests. Antibody tests indicate you had a previous infection and that you may have some level of protection against the virus.
How long will I test positive for COVID-19 after having it?
Someone infected with Covid will typically test positive for five to eight days, said Dr. Freedman of the American Society of Tropical Medicine and Hygiene. In rare cases someone might test positive for as long as six weeks, even though the individual is no longer contagious, he said.
What are the guidelines for people who has had close contact with someone with COVID-19?
Anyone who has had close contact with someone with COVID-19 should stay home for 14 days after their last exposure to that person.
What are consequences of a false negative COVID-19 test?
Risks to a patient of a false negative test result include: delayed or lack of supportive treatment, lack of monitoring of infected individuals and their household or other close contacts for symptoms resulting in increased risk of spread of COVID-19 within the community, or other unintended adverse events.
What should a symptomatic person who has received a negative COVID-19 antigen test result do?
A symptomatic person who has received a negative antigen test result and then a negative confirmatory NAAT but has had close contact with a person with COVID-19 within the last 14 days should follow CDC’s guidance for quarantine, which may include retesting 5-7 days after last known exposure.
What does a positive COVID-19 antibody test result mean?
A positive test result with the SARS-CoV-2 antibody test indicates that antibodies to SARS-CoV-2 were detected, and the individual has potentially been exposed to COVID-19.