The Director-general, World Health Organization Tedros Adhanom Ghebreyesus has said that a vaccine will not by itself stop the coronavirus pandemic.
The pandemic raging months, after it broke out, with infections soaring past 54 million and claiming more than 1.3 million lives.
He said the vaccine will complement other tools but cannot replace them.
The WHO said that 660,905 coronavirus cases were reported to the UN health agency, setting a new high watermark.
Tedros therefore, said that supplies of the vaccine will initially be restricted, with health workers, older people and other at-risk to be prioritized.
Adding that this will hopefully reduce the number of deaths and enable the health systems to cope.
He said Surveillance will need to be continue, people will still need to be tested, isolated, and cared for, contacts will still need to be traced and individuals will still need to be cared for.