Australia’s acting chief medical officer has warned COVID-19 public health measures will need to remain despite vaccines being rolled out. Michael Kidd is tempering expectations that jabs will lead to life returning to pre-pandemic settings after the Pfizer vaccine was approved for use in Australia. The two major unknowns are whether coronavirus vaccines prevent transmission of the virus and if booster shots will be needed each year, similar to the flu. “That just reinforces for us how important it’s going to be – even though we might get the vaccine rolling out across Australia – that people still adhere to the public health measures,” Kidd told ABC radio on January 26. That means social distancing, hygiene measures and other rules, as well as international travel restrictions, are likely to remain throughout the year. Australia has a deal for 10 million doses of the Pfizer vaccine, which recorded a 95 percent …