Here&rsquo s a recap of Sunday&rsquo s  Omicron  developments as the new strain continues to panic world leaders.

• Authorities in the  Netherlands  detected at least 13 cases of the Omicron variant from recent flights into Amsterdam from South Africa.
• Botswana, which borders South Africa,  said it has recorded a total 19 Omicron cases.
• The  UK  said it has detected three total Omicron infections in Nottingham, Essex and the London borough of Westminster, with targeted PCR testing being stepped up.
• The  World Health Organisation  urged countries not to impose blanket travel restrictions on southern African countires, amid fears of the economic toll and that the science behind the decisions is not yet certain without further studies.
• South Africa&rsquo s president Cyril Ramaphos said the new variant is a wake-up call for global vaccine inequality and criticised travel bans for their economic fallout.
• European Commission  president Ursula von der Leyen warned of global race against time against Omicron, urging people to practice social distancing and get vaccinated so scientists have time to understand the new variant&rsquo s transmissibility and severity.
• The health ministers of the  G7  will hold an emergency meeting on Monday to discuss the Omicron variant.
• The 194 member states of the  World Health Organization  agreed to launch pandemic treaty negotiations as the world prepares to learn the lessons of Covid for the next pandemic.
• The  US  chief medical adviser Anthony Fauci warned of a potential fifth wave of Covid in  America, as the US vaccination rate slows, cases rise and the Omicron variant looms on the horizon.
• The  UK  reported 37,681 new Covid cases and 51 deaths, with the government vaccine watchdog suggesting the vaccine booster drive could be accelerated as soon as Monday to suppress cases.
• Secondary school pupils and teachers in  England  will wear once again face coverings in communal areas.
• Israel  suspended all flights into the country on Sunday at 10pm GMT after detecting its first Omicron infection on Friday, just four weeks after it fully opened its skies to vaccinated travellers.
• Morocco  said it will stop all incoming flights for two weeks starting Monday to prevent spread of the new strain.