Sunday , February 28 2021

Quick test and fear factor. How Madrid cut virus incidence in half



The replacement and population behavior of conventional PCR (smear sampling) using rapid antigen testing are probably the two factors that contributed the most to halving the incidence of the novel coronavirus in Madrid last month.

The three experts were careful about data analysis, soil Point out these reasons as possible causes of fall registered in the area. The cumulative incidence of the virus started at 735 (September 30) and data was recorded on Wednesday with 339 infections.

The Madrid administration, headed by Isabel Díaz Ayuso, has made many decisions with the central government in response to the epidemic, and is focusing on its actions. For example, he believes that “surgical” closures and restrictions for certain health areas in the area are “effective”. However, according to experts, data analysis is more comprehensive and should take into account changes in epidemic combat strategies.

Rapid test introduction

Several changes have been made that affect the way cases are counted, so it is worth taking a closer look at these data. The type of diagnostic test used, the environment of use and the criteria for application. “Miguel Ángel Royo, a preventive medicine and public health expert and spokesman for the Spanish Epidemiological Association, said.

“One of the changes in pandemic strategy is the introduction of rapid antigen testing,” stresses Royo. It is a cheaper and faster diagnostic tool that allows early isolation.

However, these tests cannot be compared to PCR. “They don’t have the same sensitivity or the same criteria of use,” he explains about this method of diagnosing covid-19, which is “for close contact with people with symptoms during the first five days of the disease.” Explains.


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