Leading infectious disease expert and Director of the Doherty Institute, Sharon Lewin, has said a system of chasing variants and giving people repeated COVID-19 booster shots was not a viable strategy. “We won’t be able to manufacture that amount, and you’ll never be able to keep up with the variance,” Lewin told The Australian Financial Review. “An Omicron variant vaccine may not be better than a Wuhan vaccine, even against Omicron.” She said a type of vaccine called pan-sarbecovirus was a more sustainable strategy compared to repeated mRNA vaccines. “We just don’t know enough about how durable the immunities are,” Lewin said. She also believes the clinical definition for COVID-19 illness will soon be switched, which will likely change health procedures to focus isolation on vulnerable groups only. “That would mean a much simpler messaging to the public to stay at home if sick,” Lewin said. The comments from Lewin come …