The Director-General, World Health Organisation (WHO), Tedros Ghebreyesus, has expressed concern over the COVID-19’s delta variant, which he called “the most transmissible” mutation to date.
Mr Ghebreyesus told journalists at a regular briefing on Friday that delta co had been identified in at least 85 countries and is “spreading rapidly among unvaccinated populations”.
“As some countries ease public health and social measures, we are starting to see increases in transmission around the world,” he said.
A surge in cases translates to more hospitalisations, which continue to stretch healthcare workers and health systems while putting more at risk of death, according to the WHO chief.
Mr Ghebreyesus acknowledged that new variants were expected, saying “that’s what viruses do, they evolve” and stressed that by preventing transmission, we can stem the emergence of variants.
“It’s quite simple: more transmission, more variants. Less transmission, less variants,” he said, noting that it is even more urgent today to prevent transmission by consistently using public health and social measures along with vaccines.
“This is why WHO has been saying for at least a year that vaccines must be distributed equitably, to protect health workers and the most vulnerable,” he said.
Maria Van Kerkhove, WHO Technical Lead on COVID-19, said “the world situation is very fragile” and “countries must be cautious”.
Noting that COVID-19 delta has proved “extremely contagious in any country it reaches”, she cautioned that it is being transmitted among unvaccinated people “even in countries with high percentages of immunisation”.
“The delta variant can make the epidemic curve exponentially,” Ms Kerkhove said.
But delta is not the only worrying mutation. According to the WHO expert, “there is a constellation of variants circulating,” including sub-variants, four of which are very worrying.
“Vaccines and treatments work, but these viruses can evolve and the existing shots “may not work” over time, emphasising again that to minimise outbreaks, everyone must continue to maintain public health measures.
“One of the most important ways WHO coordinates the response to COVID-19 and other emergencies is through its global network of emergency medical teams (EMTs).
“When crises strike, WHO mobilises these health professionals to support national responses, treat patients, provide training and supervision, and ensure quality-care standards.
“Globally, WHO has certified teams from 20 countries, who have gone through a rigorous process of quality assurance to ensure they meet internationally agreed standards,’’ he said.
The UN agency chief said that another 87 countries were either in the process of being WHO certified, or were developing quality-assurance systems nationally.
Since the beginning of the pandemic, he said that WHO has helped deploy over 108 international EMTs and experts worldwide.
“Last week, WHO and partners published new EMT deployment standards for a range of situations, from natural disasters to epidemics and conflict situations.
“This represents a major step forward in ensuring emergency medical teams meet shared standards for quality of care, whether they are deployed nationally or internationally,” he said.
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