COVID-19 vaccines may be less effective against Omicron – WHO
< img src =" https://worldbroadcastnews.com/wp-content/uploads/2021/12/EpAicY.jpg" class =" ff-og-image-inserted" > Initial proof suggests that COVID-19 vaccines might be less efficient versus infection and transmission linked to the Omicron coronavirus variant, which also brings a greater threat of reinfection, the World Health Company stated on Wednesday.
The WHO, in its weekly epidemiological upgrade, stated that more information was needed to better comprehend the level to which Omicron might evade resistance originated from either vaccines or previous infection.
” As a result of this, the general threat related to the new variation of issue Omicron stays extremely high,” it stated, echoing comments made by WHO officials at an online rundown on Tuesday.
For the very first time given that the dominant version was classified as a version of concern in April, the portion of Delta sequences registered on the GISAID global science database has actually decreased this week compared with other variants of concern, it stated.
This requires to be analyzed with care as nations may perform targeted sequencing for Omicron and therefore upload fewer sequences on all other variations, consisting of Delta, it said.
The Delta variant is still dominant, however, representing 99.2% of the nearly 880,000 sequences submitted to GISAID with specimens gathered in the last 60 days.
But the pattern is decreasing in the proportion of Alpha, Beta and Gamma, and with the emergence of Omicron variant. Out of the overall, some 3,755 – or 0.4% – were Omicron and the other three versions of concern together numbered 401, less than 0.1% each.
Published at Wed, 15 Dec 2021 11:14:34 +0000