Officials reported 30 new coronavirus infections in Melbourne overnight -- the 10th straight day of double-digit rises in new cases in the city and surrounding Victoria state, while most other Australian regions have seen no or low single-digit new infections for weeks.
Seven other countries risked less extreme but "potentially dangerous" warm weather: Belgium, Estonia, Finland, Latvia, the Netherlands, Portugal and Sweden, it said.
Australia's two largest states will further ease public coronavirus restrictions despite recording increases in new infections.
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.
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.
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.
Around 20,000 new cases were reported in Australia by midday on Monday with two states due to report later, while four deaths were registered. More than 3.1 million cases and 5,590 deaths have been recorded since the pandemic began.
Authorities in Tonga, hit by a massive volcanic eruption and a tsunami on Jan. 15, have asked for aid to be delivered without human contact amid concerns a COVID outbreak would be devastating for the tiny Pacific island nation.
Like millions of others in the most locked-down place on the planet, Melbourne resident Rav Thomas dutifully spent 262 days confined to his home as the COVID-19 pandemic raged. He got vaccinated. And the single father of two found ways
The WHO report said that almost half of the deaths that until now had not been counted were in India. The report suggests that 4.7 million people died there as a result of the pandemic, mainly during a huge surge in May and June 2021.