To HAVE estimates as precise on the actual number of people affected by the new coronavirus Sars-CoV-2 is a central question to better frame the epidemic and to look into the face of the enemy, the coronavirus. Also to this, recently, the health authorities of Hubei province, the hardest hit, they decided to change the diagnostic criteria of de l Sars-CoV-2 and also include those who do not have symptoms and a ct scan pulmonary altered but has not (yet) received a diagnosis using the specific test to detect the presence of coronavirus. In this context, the experts also wondered how effective this test. A study conducted in China has found that it does not always work on the first shot. And that in a limited number of patients gave a false negative and it was necessary to repeat it several times. The study was published February 12 in the journal Radiology. Here is how to interpret this data, without unnecessary alarmism and with a look that captures multiple points of view. The Test for the coronavirus research has been carried out in China, in Hunan province, which is not very far from Hubei, where he started the contagion. In the survey, scientists have analyzed data from 167 patients who live in three cities of Hunan. Among them, 155 persons (93% of the total) had symptoms, a ct pulmonary altered and a diagnostic test for the new coronavirus positive result at the first shot. The other 7, in addition, had a positive test while having the tac within the limits of the standard. And finally, in five cases, although positive ct scan of the lung, the test result was negative and was repeated six times before showing a positive outcome, in a period from 2 to 8 days later.
Coronavirus, diagnostic tests always work?
To HAVE estimates as precise on the actual number of people affected by the new coronavirus Sars-CoV-2 is a central question to better frame the epidemic and
21 February 2020 Friday 20:00