The combination of AstraZeneca's first dose of Covid-19 vaccine and Pfizer's second dose increased neutralizing antibody levels six-fold compared with...
July 26, 2021
A study by Chile's Catholic University has shown that the Chinese-developed Coronavac vaccine's effectiveness was down after six months. Patients...
July 23, 2021
Sinovac Biotech announced Wednesday that its Covid-19 vaccine Coronavac - manufactured in Brazil by Instituto Butantan - is safe in...
June 30, 2021
U.S. biotech Moderna announced Tuesday that its covid-19 vaccine produced neutralizing activity against variants of the coronavirus, including delta, in...
June 29, 2021
The second Russian vaccine against coronavirus, EpiVacCorona, is 94% effective in older people and provides immunity for at least one...
April 7, 2021
RIO DE JANEIRO, BRAZIL - Roberto Kraenkel, professor of the Institute of Theoretical Physics of the Methodist University of São...
March 6, 2021
The country now registers 10,871,843 Covid-19 cases and 262,948 deaths since the start of the pandemic, according to the media...
March 6, 2021 Sinovac Biotech’s COVID-19 vaccine may not trigger sufficient antibody responses against a new variant identified in Brazil, a small-sample lab...
March 5, 2021
Bharat Biotech’s vaccine showed a 81% efficacy in preventing symptomatic COVID-19 in an interim analysis of a late-stage trial in...
March 3, 2021