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Testing is a key tool to: find and isolate people who have COVID-19, to prevent the spread to others and to prevent outbreaks. follow up with close contacts of cases so that they can self-isolate, monitor for symptoms and get tested.
Jan 25, 2022 · If you have symptoms of COVID-19, take an at-home antigen test and it is positive, you likely have COVID-19 and should isolate at home according to Centers for Disease Control and Prevention guidelines. Sometimes an at-home COVID-19 antigen test can have a false-negative result.
If you test positive for COVID-19, you should notify anyone who has been near you for at least 15 minutes when health and safety measures were not in place or were insufficient. Are you a close contact of someone who has tested positive? Learn what to do.
May 10, 2024 · A positive test will yield two visible lines on the lateral flow device, while a valid negative test will only show a single line next to the letter ‘C’, which stands for control. In addition to their speed and ease of use, these rapid tests can also be performed anywhere, increasing the accessibility of testing.
Oct 28, 2021 · A positive result: Two lines on control (C) and test (T). Negative: One line on control (C). Invalid: No lines or only a test line mean the results are invalid and it needs to be taken...
Aug 7, 2020 · Testing for the virus. Sample collection: A swab is taken from the inside of the nose or back of the throat. Processing: Molecular tests detect whether there is genetic material from the virus. Positive test result. True positive: You are currently infected. Almost all positive results are true positives.
The accuracy and reliability of COVID-19 diagnostic tests is important to inform diagnosis and to ensure Canadians can make the right decisions about their health. Accurate results mean that Canadians can take preventative measures to protect loved ones and others if they test positive.
