As of September 12, 2021, 46,668,941 French people have completed their coronavirus vaccination schedule. This now represents nearly 70% of the population. While these figures from the fight against covid-19 are encouraging, they will not be enough to end the epidemic. Professor Benjamin Davido, infectious disease specialist at the Raymond-Poincaré hospital in Garches (Hauts-de-Seine), drew this observation from the pages of the Parisian edition of September 12, 2021. For this specialist, it will be necessary to develop a new vaccine to deal with variants.
Vaccine against covid: logistics close to “the flu”
“If we want to reset the counters to zero and for the Covid to become one of the most fragile diseases, we will need vaccines updated by variants. We are in a logistics that is closer to the flu management“, explained the expert to our colleagues on a daily basis.
In an attempt to stem the new wave of the epidemic, a third dose campaign was launched on September 1, 2021 for people over 65 and people with co-morbidities. It has been extended to nursing home residents since September 13. “We are going to vaccinate these same fragile people, with the same chronology. The question is: will we be able to have with the effect of the boosts (reminders) a longevity of one year between each dose? “asks the expert.
A 2.0 vaccine needed to fight variants
If the authorities will have to adopt a strategy similar to that of the fight against influenza with new injections, it is very likely according to the expert that new products will be developed soon. “Each year, we reinject a little H1N1 during the flu vaccination, but for Covid-19, it will depend on the last variant in circulation. Immunity boosts won’t be enough, so a 2.0 vaccine will be needed, that’s for sure. “, explains the immunologist.
He recognizes that we will have to think about the fight against the epidemic in the long term. “We will not be able to play for two years in a row booster shots every six months, which risk killing the vaccine in the bud,” admits Professor Benjamin Davido. The problem arises from the many variants in circulation. “If we start with a Mu variant when it is the Delta variant which predominates, we will be stuck”.
“It is necessary to foresee as of now that it is indeed a third or a fourth dose of a vaccine 2.0 which will initiate a durable exit of the tunnel, possibly with the help of vaccines with different mechanisms of action”, He concludes.
As of September 12, 2021, there were 10,486 daily positive cases for covid-19 in France. This represents a decrease of 26% compared to last week according to the Covidtracker site. Hospitalizations are also down with 10,012 patients treated and 2,129 people in intensive care.