"It seems that nearly every day we reach a new and grim record", Tedros said.
The World Health Organisation has issued a warning against the politicising of the coronavirus pandemic, arguing it is preventing the unity needed to beat COVID-19.
The coronavirus has now killed more than 454,000 people and infected 8.4 million people globally.
Brazil accounted for the most from a single country with 54,771 cases, followed by the United States with 36,617 and India with 15,400.
The WHO warned last week of a new and unsafe phase of the coronavirus pandemic, with people tiring of lockdowns despite the disease's rapid spread.
"We can not defeat this pandemic with a divided world", he told a virtual health forum organized by Dubai in the United Arab Emirates.
"The pandemic is still accelerating", WHO's director general Tedros Adhanom Ghebreyesus told the virtual health forum organised by Dubai in the United Arab Emirates.
WHO Chief Tedros Adhanom Ghebreyesus told a virtual press conference on Friday that "The world is in a new and unsafe phase".
"Its effects will be felt for decades to come".
"There are many countries right now that have had success in suppressing transmission and bringing human-to-human transmission to a low level that are starting to see increasing cases", World Health Organization epidemiologist and technical lead on the pandemic Maria Van Kerkhove said, naming South Korea as one of them.
The WHO emphasises that dexamethasone should only be used for patients with severe or critical disease under close clinical supervision. Countries are understandably eager to open up their societies and economies.
China, Germany and Japan are also battling new outbreaks with some reintroducing containment measures.
The spike in infections increased nervousness in global markets, which mostly fell on Monday.
Like rival airlines, Lufthansa was plunged into crisis after efforts to contain the coronavirus brought air travel to a near standstill for several months this year.
The sporting world has been reemerging from the darkness, although for every step forward it seems to take one back.
Canada only saw 267 new cases of the virus nationwide Sunday.
In Honduras, President Juan Orlando Hernandez became the latest world leader to be hospitalised after testing positive for the coronavirus.
