Too soon to tell if Delta variant symptoms are different


Two doses of the Pfizer-BioNtech vaccine are more effective against the Delta COVID-19 variant than two doses of the AstraZeneca shot, preliminary observational data suggests.

What are the new findings?

Deputy medical officer of health Dr Ivan Muscat said he expected most new cases would be the Delta variant.

"It is now much more likely than six months ago that unvaccinated people can get infected with the virus, and if they get infected with the virus, it's four times more likely than before that they end up in hospital", Juni said.

The effectiveness of two vaccines was studied for the goal, BioNTech's ' mRNA vaccine, Pfizer and Oxford-Astrazeneca's vaccine.

With earlier variants, each individual infection resulted in three to five new cases, he added. Astrazeneca's Covishield vaccine manufactured by Serum Institute of India has inoculated the majority (88 per cent) of the population in India so far.

It now accounts for about 90% of Covid cases in the UK.

The paper, that is not yet peer-reviewed concluded that both the vaccines offered a high level of protection against the Delta variant of coronavirus.

"People who are younger tend to have lower vaccination rates, this is especially true in the United Kingdom, because people below the age of 25 are hardly vaccinated", Dr. Peter Juni, head of Ontario's science advisory table, told in a phone interview on Wednesday.

Data from Public Health England (PHE), showed that two doses of the vaccine are 92% effective in preventing hospitalisations caused by the Delta variant, noting no deaths from the strain were reported among those who have completed their rounds. Higher efficiency against case of hospitalisation with severe symptoms was supported by T-sell response to the vaccine thus providing high and durable protection. The 509 genome sequences revealed 13 cases of the Delta variant, eight of the Alpha variant, and 112 of the Beta variant, among other variants of concern.

Another analysis of Delta variant was done in Scotland and published covered a period between April 6 and June 6. "We will study and learn more about this variant".



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