“The war has changed,” warns the US public health agency, which says the Delta variant is more dangerous and more contagious than previously thought.
In an internal memo revealed by the Washington Post and The New York Times, the Centers for Disease Control and Prevention (CDC), which is the US federal public health agency, indicates that the Delta variant of SARS-CoV-2 is transmitted “As easily as chickenpox”. It would be much more contagious than the original strain of the virus, whose contagiousness could approach that of the flu.
According to agency experts who are based on hospital data from Canada, Singapore or Scotland, the Delta variant also causes “more serious” cases than any other variant.
Even more worrying, vaccinated people infected with the Delta variant could transmit the virus as easily as the unvaccinated. Information corroborated by Doctor Anthony Fauci, epidemiologist and former scientific adviser to the White House, interviewed Friday by the American public radio NPR.
The director of the Centers for Disease Prevention and Control (CDC), Rochelle Walenksy, relies on these data to again recommend, for two days, the wearing of masks indoors for people vaccinated in high-risk areas .
The note also indicates that there are 35,000 symptomatic infections per week among 162 million Americans vaccinated.
If the infection of vaccinated people is possible, the American health agency nevertheless recalls the importance of being vaccinated. The CDC estimates that the risk of dying or being seriously ill is divided by ten with a vaccine and the risk of being infected by at least three.