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… tests are negative for the virus. The PCR test is very useful to find a very recent infection, find out if an HIV … tests are negative for the virus. The PCR test is very useful to find a very recent infection, find out if an HIV …
Medical tests
Medical tests
Medical tests
… drop of blood on a glass slide. Thick blood smears are most useful for detecting the presence of parasites, because they … drop of blood on a glass slide. Thick blood smears are most useful for detecting the presence of parasites, because they …
Medical tests
Medical tests
Medical tests
Medical tests