The statement from WHO came at a time when countries in Europe face a resurgence of Covid infections leading to lockdowns and increase in the number of hospitalizations.

Vaccines don’t reduce transmission dangers, warns WHO


The World Well being Group (WHO) on Wednesday warned that the vaccines which can be getting used at present supply solely 40% safety from transmission of Covid-19 as a result of Delta variant.

The WHO additional mentioned international locations ought to proceed to observe measures non pharmaceutical measures in addition to give attention to reaching wider vaccination numbers to suppress the virus.

The assertion from WHO got here at a time when international locations in Europe face a resurgence of the an infection resulting in lockdowns and enhance within the variety of hospitalizations.

“Vaccines save lives, however they don’t totally stop Covid-19 transmission. Knowledge recommend that earlier than the arrival of the Delta variant, vaccines lowered transmission by about 60%. With Delta, that has dropped to about 40%” mentioned Tedros Adhanom, Director Normal of WHO, whereas including that in lots of international locations and communities the WHO is worried a few false sense of safety that vaccines have ended the Covid-19 pandemic and that people who find themselves vaccinated don’t must take another precautions.

Considerations over waning vaccine effectives with the Delta surge has frightened well being officers internationally. New knowledge on vaccine effectiveness although means that vaccines reduce the danger of extreme illness or demise, transmission dangers persist.

For instance, a brand new research on India’s Covaxin vaccine effectiveness has proven the vaccine is efficient solely 50% in chopping the dangers of transmission in opposition to the Delta variant.

Equally, the outcomes rising from the vaccine effectiveness of the Pfizer/BioNTech vaccine exhibits the vaccine was 51% efficient in lowering transmission and the Moderna vaccine confirmed 73% (this was a research launched in November this 12 months from Qatar that was revealed in Nature).

For the AstraZeneca vaccine the effectiveness of Delta in stopping an infection is seen within the vary of 50-70%.

The decrease safety when it comes to stopping transmission has led to international locations resembling US, Israel, and Canada to supply booster photographs to prime up the immunity ranges.

In Europe the regulators will take a name within the coming weeks whether or not international locations within the European Union ought to begin providing booster photographs. Nevertheless, the WHO isn’t within the favour of providing booster photographs within the curiosity of fairness.

“Let’s give one life jacket to folks, earlier than you give two life jackets”, mentioned Mike Ryan, Assistant Director Normal for Emergency Preparedness WHO. The present knowledge on hospitalization of Covid19 sufferers in international locations resembling Europe present that the majority of those that are in extreme situations of Covid19 are unvaccinated people. A part of Europe’s new wave is attributed to the unvaccinated folks and the stress must be on focusing vaccination on these populations.

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