Of the million people who received Pfizer’s vaccine against Covid-19 in the United States , only 6 suffered allergic reactions, a small number but higher than what usually happens with other vaccines, said Mef Slaoui, chief scientist of Operation Warp Speed.
“I have no update today, but the latest data is that there have been six allergic reactions in a million vaccinated,” Slaoui said at a press conference, who recalled that the next updates will incorporate many more vaccinated, since there are delays of several days in the count.
Slaoui acknowledged that “this frequency (of allergic reactions) is higher than what one might expect from other vaccines” and that, in the case of Moderna’s vaccine, which has been administered for only a few days, there are no reports of anaphylactic shocks .
The US authorities are in contact with the pharmaceutical companies participating in the vaccine development program and are considering the possibility of conducting clinical trials with volunteers predisposed to allergic attacks.
General Gustave Perna, head of Operation Warp Speed (Maximum Speed) to obtain vaccines against COVID-19 in record time, explained that to date just over 15 million doses of the two vaccines authorized by the Food Administration have been distributed and Medications (FDA, in English) and assured that, by the end of the year, there will be five million more.
However, Slaoui acknowledged that injections “are being slower than we expected”, although production and distribution broadly met the forecasts set.
The US authorities hope to increase the number of vaccination centers available to priority members, such as health workers or the elderly, by around a thousand starting next week.
The fact that vaccinesPfizer / BioNTech and Moderna are designed to be administered in two doses complicates the vaccination process, which requires reserving some doses, maintaining traceability and communication between federal authorities, states, hospitals and vaccinated personnel.
Those responsible for Operation Warp Speed , which allocated billions of dollars to accelerate the procurement of vaccines against COVID-19, hope to vaccinate 100 million people before the end of March, with the help of pharmacies and other centers of face to the public to facilitate reaching the general population.
The second dose of those who began to receive the Pfizer vaccine from December 14 will begin to be administered from next week, with which there will already be people who have completed the immunization process, which is effective in 95% of cases. , according to clinical trials.
Regarding the possibility that the coronavirus strains detected in the United Kingdom and South Africa complicate this process of fighting the pandemic, Slaoui assured that for the moment the data “only suggests that the new strains are more infectious” and that there is no data definitive about it.