A sign warning people to stay in aloof due to Covid-19 it shows on July 29, 2021 in Mevagissey, United Kingdom.
Finnbarr Webster | . News | .
More than one year in the Covid-19 pandemic, the world is struggling with a highly transmissible delta variant that has caused a renewed momentum in infections in countries from the United Kingdom and the United States, to those in Africa and Asia.
The delta variant, that was first detected in India last October, it was found in more of 130 countries global, according to the World Health Organization.
Delta is the most transmissible variant of the coronavirus that first emerged in China in at the end of 2019, said Dr. Maria Van Kerkhove, an epidemiologist and technician lead for Covid-19 to the WHO.
“The virus itself, in the beginning, is a dangerous virus, it is a highly transmissible virus. The delta variant is uniform more hence – it is doubly more transmissible compared to the ancestral stock, is 50% more transmissible than the alpha strain, “he told a WHO media meeting last week.
The alpha variant was first detected in The UK
Globally, the number of the reported cases of Covid-19 have exceeded 200 million on Wednesday and more of 4.2 million people they died from it, data compiled by Johns Hopkins University showed.
Delta is one of four “variants of worry” listed by WHO. Such variants are considered more contagious, more resistant to current vaccines and treatments, or it could cause more severe illness.
The delta variant has become the dominant strain causing Covid-19 in lot of countries.
About 65 countries Covid cases detected caused from the delta variant in the four weeks to August 5, according to genetically sequenced coronavirus samples collected by GISAID.
GISAID is a platform for scientists a share information on virus and its data are widely used since global scientific community, including the WHO.
in 55 of those countries, the delta variant accounted for for over half virus samples presented showed data compiled by GISAID.
Data on the prevalence of the delta variant Covid probably underestimates the real situation because some countries do not do it share sequenced samples with GISAID, while others may not have the ability and resources to perform viral sequencing.
The delta Covid variant was not spared countries with some of the highest vaccination rates globally.
Israel, where more 62% of the population were fully vaccinated, they reported an increase in daily cases over the past month in which the delta has become the dominant strain in Village.
How does the delta variant spread in Israel, the ministry of health found than effectiveness of the two-dose Covid Pfizer-BioNTech vaccine dropped to just 39%, although protection against severe illness remained high. The country has started administering booster shots to people over age 60.
But one studio in the United Kingdom, where the delta variant is found also refueling rise in infections, found than two doses of Pfizer-BioNTech or the AstraZeneca-Oxford University vaccine were almost as effective against delta as they were against the alpha variant.
The studio published in the New England Journal of Medicinal Used real world data, and found than two doses of Pfizer-BioNTech vaccine was 88% effective against the delta variant This is compared to 93.7% against the alpha strain, he said.
The AstraZeneca-Oxford vaccine was found be 67% effective against delta, compared to 74.5% efficacy against the alpha variant, according to lo studio.
But the vaccination progress remained uneven in all the world. Lot of in via of poorer development countries I’m in delay behind due to their lack of access to Covid-19 vaccines.
The WHO called on Wednesday on rich nations to stop distributing booster shots, citing the inequity of vaccines around the world.
In addition to getting more people inoculated, Van Kerkhove of the WHO said there are steps individuals can take it to better protect themselves from the delta variant. That includes wearing a mask, keeping your hands clean and spending more time outdoors than indoors, he said last week.
“This will not be the last variant of the virus that you hear us talking about “, she added. “The virus will probably become more transmissible because that’s what viruses do – them evolve, they change over time and therefore we must do what we can for drive it down. “
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