Unfortunately, the PCR testing centers that used to be available ... minutes for the lights on the face to signal if you're ...

People with asymptomatic or mild illness generally test negative after nine days. A polymerase chain reaction (PCR) test can ...

the PCR was positive (eight of 11 with bacteraemia and 14 of 29 without); (2) 30 with pneumonia due to other pathogens in all of whom the PCR was negative; (3) 44 with pneumonia of unknown aetiology ...

In one case (0.5%), staff incorrectly interpreted the result as negative after the participant correctly interpreted it as positive. Interpretations of RT-PCR–positive results showed 94.4% interrater ...

The proportion of positive RAT (59.0%) and RT-PCR (83.0% ... "Clinicians should be aware of the lower sensitivity of antigen testing compared with RT-PCR, which might lead to false-negative results," ...

Covid testing rules are to be eased for people without symptoms, who will no longer need to confirm a positive lateral flow test with a PCR ... if they receive two negative lateral flow test ...

Three explanations can be offered for the differences concerning the PCR results. First, the PCR positive and negative cases arise from substantially different pathophysiological mechanisms, that is, ...

Repeat CSF analysis showed mild lymphocytic pleocytosis with negative real-time HSV PCR ... Subsequently, acyclovir was resumed. The HSV-1 PCR result was positive on day 30. Unfortunately, the patient ...

Two patients suffering from chronic recurrent tonsillitis were reported. The first patient was confirmed infected with COVID-19, 3 weeks prior to tonsillectomy. The detritus and tonsil specimen were ...

This patient had acute anterior uveitis with hypopyon and was HLA-B27 negative. Therefore ... by using several different primer pairs. When positive results were noted, we then used real-time ...