It’s been just reported by the latest news coming from CNN that the Pfizer immunity that people get in front of the terrible covid-19 disease is dropping off after two months, approximately.
It’s been also reported the fact that protection against severe disease, hospitalization, and death remains strong.
The studies are from Israel and from Qatar and published in the New England Journal of Medicine. Another important issue that is worth noting about the studies is that they support arguments that even fully vaccinated people need to maintain precautions against infection.
Antibody levels are waning after two doses
One study from Israel covered 4,800 health care workers and showed antibody levels wane rapidly after two doses of vaccine “especially among men, among persons 65 years of age or older, and among persons with immunosuppression.”
“We conducted this prospective longitudinal cohort study involving health care workers at Sheba Medical Center, a large tertiary medical center in Israel.”
This is what Sheba’s Dr. Gili Regev-Yochay and colleagues wrote.
The researchers noted that levels of so-called neutralizing antibodies are correlated with protection against infection, but for this study, they studied only antibody levels.
“Published work about many vaccines, such as those against measles, mumps, and rubella, has shown a small decrease each year of 5 to 10% in the neutralizing antibody levels,” they wrote.
They continued and said the following:
“We found that a significant and rapid decrease in humoral response to the BNT162b2 vaccine was observed within months after vaccination.”
Covid-19 survivors are in danger
It’s been just reported by CNN that covid survivors, some of whom were never sick enough to require hospitalizations, may face a higher risk for serious heart issues one year after infection. This was according to a report Thursday.
The study found that non-hospitalized patients had a 39% increased risk of developing heart failure compared to someone who was never infected by the novel virus, Bloomberg states.