The two dose regimen of the Pfizer-BioNTech covid-19 vaccine is 88% effective against symptomatic disease caused by the delta variant, while the Oxford-AstraZeneca vaccine is 67% effective, research has found.1 The study, funded by Public Health England, estimated the effectiveness of ...
The Shanghai Center for Disease Control and Prevention have revealed new packs of COVID-19 vaccine.
However, in a majority of individuals whose homotypic neutralization titres were more modest—including over 50% of convalescent COVID-19 individuals and recipients of a single dose of vaccine—heterotypic neutralization dropped to negligible levels. This loss of cross-neutralization was particularly notab...
The federal government is ordering more than 75 million syringes, alcohol swabs and bandages so it can inoculate Canadians as soon as a COVID-19 vaccine is ready. Procurement Minister Anita Anand says Ottawa intends to stockpile enough vaccine supplies to give at least two doses to every...
Researchers recruited 114 eligible Australians to participate in the first-in-human trial, which aims to assess the safety and efficacy of a single dose of both vaccines as a fourth dose of the COVID-19 vaccine. All the participants have already received their third dose of an existing vaccine...
Anand said there is work ongoing to co-ordinate the federal procurement and provincial needs with the maintenance of a stockpile, and she said the same principle is being extended to other supplies, such as the vaccine equipment. “Rest assured if those syringes are not used for vacc...
In the COVID-19 patients, the second vaccine dose did not have such a strong effect on the antibody levels in the blood. This is in line with earlier studies on the antibody response in the blood where people who previously had COVID-19 showed a strong increase in antibodies after the ...
Vaccine efficacy Immune response Dose interval Introduction The coronavirus disease 2019 (COVID-19) pandemic has not only surpassed all projections but even after one year of its origin, it continues to create havoc across the globe. As per the current understanding, the clinical presentation of CO...
So far, 66.8 percent of the country's total population of 3.4 million has received two COVID-19 vaccine doses, 1,030,054 people have received a third dose, and 111,944 have received a fourth dose voluntarily.■
Merck & Co is to axe development of two COVID-19 vaccine candidates, focusing on development of two therapies instead after disappointing results in early trials.