Category: The Vaccine

Study is the first to demonstrate cross-protective immunity by vaccines. Northwestern Medicine scientists have shown for the first time that coronavirus vaccines and prior coronavirus infections can provide broad immunity against other, similar coronaviruses. The findings build a rationale for universal coronavirus vaccines that could prove useful in the face of future epidemics. “Until our study, what hasn’t been clear […]

Strong antibody response to mRNA vaccines declined over an eight-month follow-up period; lower initial response to single-shot Ad26 vaccine remained stable over time, research shows. Based on the strength of clinical trial data showing the vaccines conferred robust protection against COVID-19, the U.S. Food & Drug Administration granted emergency use authorization to the mRNA-based vaccines known as BNT162b2 (BioNTech, Pfizer) and mRNA-1273 (Moderna) in December 2020, and to the Ad26.COV2.S (Johnson […]

People who had received a first dose of the Oxford-AstraZeneca COVID-19 vaccine and received an mRNA vaccine for their second dose had a lower risk of infection compared to people who had received both doses of the Oxford-AstraZeneca vaccine. This is shown in a nationwide study performed by researchers at Umeå University, Sweden. “Having received any of the approved vaccines is better […]

Valneva vaccine shows good outcomes in comparison with AstraZeneca jab A covid-19 vaccine made by Valneva produced stronger antibody responses and fewer side effects than the Oxford/AstraZeneca vaccine in a clinical trial, the French company has announced. The trial included more than 4600 participants in the UK, who were randomly allocated one of the two vaccines, while delta was the predominant […]

People without immunity against COVID-19 were at considerably lower risk of infection and hospitalization as the number of family members with immunity from a previous infection or full vaccination increased. This is shown in a nationwide study performed by researchers at Umeå University, Sweden. “The results strongly suggest that vaccination is important not only for individual protection, but also for […]

Unvaccinated pregnant women make up one in six of the most critically ill covid cases One in six critically ill covid-19 patients in England are unvaccinated pregnant women, according to new figures from July to September. Of the 118 covid-19 patients in England who received extra corporeal membrane oxygenation (ECMO) during this time, 20 of them were pregnant. ECMO is usually given to critically ill […]

Researchers in Japan have developed a vaccination strategy in mice that promotes the production of antibodies that can neutralize not only SARS-CoV-2 but a broad range of other coronaviruses as well. If successfully translated to humans, the approach, to be published today (October 8, 2021), in the Journal of Experimental Medicine, could lead to the development of a next-generation vaccine capable of preventing […]

Throughout the COVID-19 pandemic, there has been much uncertainty about how long immunity lasts after an unvaccinated person is infected with SARS-CoV-2. Now a team of scientists led by faculty at Yale School of Public Health and the University of North Carolina at Charlotte have an answer: Strong protection following natural infection is short-lived. “Reinfection can reasonably happen in three months or less,” […]

Vaccines for flu and covid-19 can safely be given at same appointment It is safe for people to get coronavirus and flu vaccines at the same time, a clinical trial has found. The reported side effects were mainly mild to moderate and there were no negative impacts on the immune response to either vaccine when both were given on the […]

Survey of children in England finds younger ages more hesitant about vaccination Younger children appear to be less willing to have a covid-19 vaccination than older teenagers, according to a survey of more than 27,000 students aged between nine and 18 in England. Overall, half the respondents said they were willing to have a coronavirus vaccination, 37 per cent said […]