Modern had 95% effectiveness in preventing hospitalizations of 18 years or older.
Washington:
COVID-19 vaccines are effective in preventing hospitalizations and visits to emergency services caused by the Delta variant of the SARS-CoV-2 virus, according to a US study.
Research using national data also indicates that the Moderna vaccine is significantly more effective against the Delta variant than the Pfizer and Johnson & Johnson preventives.
“These real-world data show that vaccines continue to be very effective in reducing COVID-19-related hospitalizations and visits to emergency services, even in the presence of the new COVID-19 variant,” he said. the study’s author, Shaun Grannis, vice president of data and analytics at Regenstrief Institute in the U.S.
“We strongly recommend vaccinations to anyone who can reduce serious illness and alleviate the burden on our health care system,” Grannis said in a statement.
The authors noted that the VISION network of Centers for Disease Control and Prevention (CDC) has analyzed more than 32,000 medical meetings in nine states during the months of June, July, and August 2021, when the Delta variant became the predominantly strain.
The results showed that people not vaccinated with COVID-19 are 5-7 times more likely to need emergency care or hospitalization, similar to the overall efficacy prior to the variant, they said.
The Morbidity and Mortality Weekly Report study, a weekly epidemiological summary for the United States published by CDC, is also the first VISION network analysis to show a marked difference between the efficacy of mRNA vaccines.
In the study time period, Moderna was 95% effective in preventing hospitalizations in adults over 18, the authors said.
The Pfizer vaccine was 80 percent effective, while Johnson & Johnson’s preventive was 60 percent effective in preventing hospitalizations among adults over the age of 18, they said.
The study also found that the effectiveness of the vaccine is lower for people 75 years of age or older, which has not been shown in previous research.
The researchers explained that this could be due to several factors, including the increase in time elapsed since vaccination.
When it came to preventing emergency service and urgent care visits, the analysis showed that Moderna was 92% effective, Pfizer was 77%, while Johnson & Johnson was 65%.
“Despite differences in efficacy, vaccines continue to offer much more protection than not getting any,” said Grannis, who is also a professor at Indiana University School of Medicine.
“Although advanced cases occur, the data show that the symptoms are less severe,” he said.
The study authors noted that the vast majority of hospitalizations and deaths from COVID remain unvaccinated.
They added that COVID-19 vaccines are powerful tools to fight the pandemic.
(This story has not been edited by NDTV staff and is automatically generated from a syndicated feed.)