COVID-19: Understanding What We Know After Five Years

 

In 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

Study Biology

The First Diagnosed Cases in France (2/10)

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.

Health Monitoring Devices

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.

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