The doctrine of the competent health authorities is fixed on the tests. Will the government, which announced the extension of the state of health emergency, follow it? The High Authority for Health (HAS) excludes, this Saturday, May 2, to use serological tests, those looking for specific antibodies to the coronavirus in a blood serum sample, in all French people for screening of the general population. Why ? Because, to this day, there is still too much uncertainty about what the presence of these antibodies means for patients.
Admittedly, there are reliable tests capable of indicating that a person has been exposed to Covid-19 since they have developed antibodies. But they “do not allow a ruling on a potential protective immunity nor a fortiori on its duration. And they do not provide information on contagiousness, “write the experts of the authority. The HAS therefore recommends to remain cautious in the use of serological tests, which can provide false security. You don’t use such a test to reassure yourself, to calm your anxieties, she explains in other words. “Today they cannot allow the establishment of an immunity passport for purposes of deconfinement. “
If the opinion is likely to evolve as knowledge evolves, it is essential today, for HAS, that these tests are only used for medical purposes, in the context of individual care. Uses for collective purposes, such as the organization of work within a company or assistance with deconfinement, cannot be envisaged. “Misused, the tests could mislead patients on their immunity, (…)
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