COVID-19: Understanding What We Know After Five Years

n December 2019, a new virus appeared in China and rapidly spread worldwide, raising global concerns — including from the World Health Organization (WHO). This highly contagious infectious disease, later named COVID-19, led to an unprecedented global pandemic. BiologicalSciences

The First Diagnosed Cases in France (2/10)
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In France, the first confirmed cases were reported at the end of January 2020. About twenty days later, the country recorded its first deaths linked to the virus.

The Lockdown (3/10)
A national lockdown was implemented on March 17, 2020. Although it was lifted less than two months later, wearing a mask became mandatory.
At the same time, authorities — in partnership with the Pasteur Institute — began planning a massive vaccination campaign. Vaccines& Immunizations

Many Questions Remain (4/10)
Several pharmaceutical companies, including Pfizer, AstraZeneca, Moderna, and Johnson & Johnson, developed vaccines in record time.
This raised many questions and debates concerning their safety, efficiency, and long-term effects.

Confirmed Side Effects (5/10)
After millions of doses administered and almost five years of data, medical specialists have reported known adverse effects such as high blood pressure, myocarditis/pericarditis, allergic reactions, and heavy menstrual bleeding.
Most of these remain rare but are documented in scientific literature.

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