8/26/2023 0 Comments Positive lateral flow![]() A recent Cochrane Review found that these tests were most accurate when used during the first week after COVID-19 symptoms developed. Some people continue to test positive on lateral flow tests for several weeks after developing symptoms. You should also be careful if you have symptoms or have been in contact with someone with COVID-19, regardless of any line. However, if you can see any line at all, you are very likely to be infectious and should take steps to protect others. You should be particularly cautious if you see a faint line and believe you're at the start of a COVID-19 infection, because viral load can rapidly increase during this time. The intensity of the test line could also be influenced by how much virus you were able to collect on your swab, and where you collected it from (nose or throat), while mutations in COVID variants may further impact test sensitivity and line intensity. A faint, slow-to-appear line could still represent high levels of virus, meaning that if you can see any line at all, you are still highly likely to be infectious. This is because relatively large amounts of virus need to be present for the antibodies in the test to react to the viral proteins. Various studies have shown that people can have COVID-19 symptoms, and test positive on a PCR test, several days before a positive line can be seen on a rapid antigen test. COVID vaccines don’t just benefit physical health – they improve mental health too. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |