Lisa Taylor receives a COVID-19 vaccination at Research Centres of America in Hollywood. Reuters
"Preliminary projections make the availability of one or several vaccines seem possible by autumn 2020," the Robert Koch Institute said in a statement on its website, citing a global effort to bring immunisations to market.
"It would be dangerous at this point to trust that a vaccination from autumn 2020 can control the pandemic," it cautioned.
The impact of any vaccine could be limited because of viral mutations or because first products to market may offer only short-term immunity, the institute added.
German biotech firm BioNTech, which is working with US pharma giant Pfizer on a novel vaccine, on Tuesday reiterated it aimed to file for emergency authorisation or approval as early as October, if ongoing trials succeed.
Also that day, Russia became the world's first country to grant regulatory approval for a COVID-19 vaccine, without producing late-stage trial data, which raised concerns among several global health experts.
Health officials worldwide have expressed concerns in recent days that some countries grappling with the devastating economic impact of lockdowns may lift restrictions too swiftly, and that the coronavirus could spread during mass anti-racism protests.
At least 115,000 nurses have died from COVID-19, but Catton said this World Health Organisation figure from the start of the pandemic through May was conservative and the true figure is probably twice that.
Pfizer Chairman and CEO Albert Bourla called the development "a great day for science and humanity." Health experts said Pfizer's results show vaccines can halt pandemic.
WHO chief scientist Soumya Swaminathan said that the variant was successfully evading some immune responses, meaning that the booster programmes being rolled out in many countries ought to be targeted towards people with weaker immune systems.
Omicron appears to be better at evading antibodies generated by some COVID-19 vaccines but there are other forms of immunity that may prevent infection and disease, WHO officials said.
Ismail Berabih lost his mother two years ago, and he entered into a state of great shock and sadness, and decided to sleep next to her grave every day, according to Algerian local media.
A snowy avalanche in northern Pakistan killed 11 people on Saturday, including a 4-year-old boy, and injured 25 from a nomadic tribe as they crossed a mountainous area with their goat herds, police said.
At least 50 children — at least two dozen of them babies - have died at the orphanage in the six weeks since the war broke out in mid-April, according to Dr Abdullah.
“Every story comes to an end and this is only the beginning of a new era for our country (Saudi Arabia) and our region.so just like to thanks everyone who had helped us,” Rayana Barnawi said.