A University of Guadalajara (UdG) study has revealed that 20 percent of people vaccinated against Covid-19 with one dose of the Pfizer/BioTech vaccine are still at risk of infection and becoming seriously ill.
However, Rector Ricardo Villanueva Lomelí said the research, which analyzed 243 vaccinated doctors from the Guadalajara Civil Hospitals, showed that having two doses of the vaccine offers protection of “almost 100 percent for severe symptoms,” and “immunizes [a person] more than someone who has been infected with Covid.”
Villanueva said the research emphasizes that citizens must ensure that they get a second dose of vaccine, stressing that “there is no guarantee that the necessary antibodies will be available to neutralize the virus” if the full vaccination schedule is not adhered to.
Villanueva said more than 134,000 doses of various brands of vaccines have been applied at different University of Guadalajara campuses and “not a single adverse reaction has been registered to date.”
Meanwhile, Pfizer CEO Albert Bourla said recently that people will “likely” need a booster dose of the Covid-19 vaccine within 12 months of getting fully vaccinated, potentially due to variants.
“A likely scenario is that there will be a need for a third dose, somewhere between six and 12 months and then from there, an annual revaccination, but all of that needs to be confirmed,” Bourla told CNBC.