Health

A third vaccine offers further hope of defeating the epidemic

[ad_1] Our readers are Facebook users Now you can follow the latest news for free through our Facebook pageClick here to register now لندن: With the outbreak of the Covid-19 epidemic in many countries, humanity’s hope lies more than ever in the development of vaccines, the first of which is …

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Covid-19: disputed PCR tests

[ad_1] The validity of these tests is increasingly criticized by experts because they produce a large number of false positives. However, they are a pillar of current health strategies, which raises questions. PCR (polymerase chain reaction) was invented by the American biochemist Kary Mullis in 1984 to facilitate the identification …

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