More Images
In Germany, the activity of acute respiratory diseases is at a higher level than usual for this time of year because of rhinoviruses and SARS-CoV-2, according to the Robert Koch Institute, Germany. If a patient has a fever and cough and feels exhausted, it could be COVID-19. What significance do rapid tests have? And when should doctors advise their patients about them?

Uncertainty about what time of day to test can be mitigated by performing multiple COVID-19 rapid tests over time. The US Food and Drug Administration (FDA) and similar organizations make this recommendation. Studies of symptomatic individuals show that serial tests increase accuracy.

In the early stages of infection, swabs may contain too little virus material because of widespread immunity against SARS-CoV-2. That is, they may contain inadequate levels of the relevant antigen. Especially in asymptomatic individuals or patients in the incubation phase, a single test may therefore yield a false negative result. Therefore, the FDA recommends conducting at least two additional tests 48 hours apart in case of a negative test result. Head over to Medscape to read the full story.