Health experts are urging Australians to prepare for a “triple threat” this winter, as COVID-19, influenza, and RSV (respiratory syncytial virus) continue to spread rapidly across the nation. The strongest form of protection against these illnesses is timely vaccination, with health officials advising people to get vaccinated before the end of May. “We’re already seeing an early wave of highly infectious respiratory illnesses,” said Professor Paul Griffin. “When one person in a household gets sick, the virus can spread to everyone within days. Early detection is key to managing outbreaks and protecting vulnerable groups.”

As of May 22, Australia has confirmed over 80,000 flu cases, marking a more than 50% increase compared to the same time last year. Influenza, caused by type A or B viruses, is a highly contagious respiratory infection that comes in several subtypes and strains. Additionally, COVID-19 cases are expected to rise in the coming months, largely driven by a new Omicron subvariant, LP.8.1. This strain, which was responsible for 60% of COVID cases in the UK by March, has been linked to significant outbreaks overseas since late 2024. While LP.8.1 is not considered more severe than previous strains, it appears to spread much more easily, further complicating efforts to manage the situation.