COVID-19 deaths in Indonesia, the hardest-hit country in Southeast Asia's latest surge, passed 2,000 for the first time today, with the country signaling that it may add a booster dose of Sinovac vaccine, due to concerns about protection gaps.Elsewhere, cases are climbing steeply in Tokyo in the midst of the Summer Olympic Games, and in Australia, a lockdown expired in Victoria state, as another was extended in New South Wales as the Sydney area continues to grapple with ongoing COVID-19 activity.Indonesia weighs Sinovac booster doseIndonesia's daily record of 2,069 deaths today reflects 600 more fatalities than the nation reported yesterday, according to Agence France-Presse (AFP), which cited health ministry figures.