A British public health study found that protection from either of the two most commonly used Covid-19 vaccines against the prevalent Delta variant of the coronavirus weakens within three months.
There are early signs that people who have been vaccinated against Covid-19 may be able to transmit the Delta variant of the virus as easily as those who have not, scientists at Public Health England (PHE) said on Aug. 6.
Combining AstraZeneca’s Covid-19 vaccine with a second dose from either Pfizer-BioNTech or Moderna’s jab provides “good protection”, Denmark’s State Serum Institute said on Aug. 2.
Britain said on July 7 the country would provide genomic sequencing support to Brazil, Ethiopia, Kenya, Nigeria and Pakistan to help identify, assess and track new variants of the novel coronavirus.
A third shot of the Oxford-AstraZeneca Covid-19 vaccine produces a strong immune response, researchers said on June 28, adding there was not yet evidence that such shots were needed, especially given shortages in some countries.
The virus that causes Covid-19 could have started spreading in China as early as October 2019, two months before the first case was identified in the central city of Wuhan, a new study showed on June 25.
The University of Oxford is testing the anti-parasitic drug ivermectin as a possible treatment for Covid-19, as part of a British government-backed study that aims to aid recoveries in non-hospital settings.
The Delta variant of Covid-19 – first identified in India – is becoming the globally dominant variant of the disease, the World Health Organization’s chief scientist said on June 18.
Britain agreed a partnership with the United States on Thursday to tackle new pandemics by bolstering disease surveillance and genomic sequencing worldwide, on the eve of a G7 leaders’ summit.
Two doses of the Oxford/AstraZeneca Covid-19 vaccine are around 85 percent to 90 percent effective against symptomatic disease, Public Health England (PHE) said on May 20, citing an analysis of real-world data from the rollout of the shot.