- Israel is mulling the fourth COVID-19 booster shot to elders. An expert panel of the Israeli Health Ministry on Tuesday recommended a fourth COVID-19 vaccine booster shot for those aged 60 and above. An Israeli hospital on Tuesday confirmed the first known death in the country of a patient with the Omicron variant of COVID-19.

- Malaysia has temporarily suspended tickets sales for air and land travel under a vaccinated travel lane scheme with Singapore until January 20, the health ministry said on Tuesday, amid concerns over the spread of the Omicron coronavirus variant.

- Brazil tightened testing requirements for travelers in light of the Omicron variant. Passengers traveling to Brazil must present a negative COVID-19 test result taken within 72 hours, and proof of vaccination, said an ordinance published by the federal government on Monday.