Australians planning to visit popular coastal holiday destinations this Christmas are being urged to check their whooping cough vaccination status, with medical experts warning that falling immunisation rates in some communities could fuel a rapid spread of the highly contagious disease during the busy summer period.

New data has flagged a string of communities stretching from Byron Bay to Noosa as potential hotspots, with vaccination rates in those areas recorded at up to 35 per cent below the national average. Health professionals say the combination of large visitor numbers and low local immunisation coverage is a cause for serious concern heading into the warmer months.

Why Holiday Hotspots Face a Higher Whooping Cough Risk

A general practitioner speaking publicly on the issue explained that the dynamics of popular tourist destinations make them particularly vulnerable to disease outbreaks. When holiday crowds arrive, some communities can see their populations swell to two, three or even four times their usual size, he noted, creating conditions where a contagious illness can move quickly through a crowd.

"Popular holiday spots often have less of a vaccination rate and some of these places can actually swell by two or three or four times the population," he said, adding that the resulting mix of visitors and locals puts the most vulnerable people at heightened risk.

Those most at risk include infants, children, people aged over 65, and pregnant women. The disease is especially dangerous for newborn babies, who cannot receive their first whooping cough vaccination until around six weeks of age, leaving them entirely dependent on the immunity of those around them for protection in those critical early weeks of life.

What Is Whooping Cough and How Dangerous Is It?

Whooping cough is a highly contagious bacterial infection that targets the lungs and airways. It typically begins with symptoms that resemble a common cold, including a runny nose, sneezing and a mild cough, before escalating into severe and prolonged coughing fits that can persist for weeks or even months.

For babies, those coughing episodes can be life-threatening. Infants may struggle to breathe, temporarily stop breathing altogether, or develop serious complications including pneumonia. The severity of the disease in young children underscores why health professionals are so focused on ensuring the people around them are vaccinated.

Experts also stress that neither a previous infection nor an earlier vaccination guarantees lasting protection. Immunity from both sources fades over time, meaning many adults who were vaccinated years ago may no longer be adequately protected.

Who Should Get a Booster Before the Holidays

The GP urged anyone who has not had a whooping cough booster within the past decade to consider getting one, particularly if they expect to spend time with newborns, pregnant women or people with compromised immune systems over the summer.

Pregnant women received a specific reminder: a fresh booster is recommended during every pregnancy, ideally between 20 and 32 weeks gestation. This approach helps transfer some protection to the baby before birth, offering a critical early shield while the infant is too young to be vaccinated.

For anyone unsure of when they last received a booster, a conversation with a GP is the recommended first step. The cost of the vaccine is estimated at between $30 and $45, a figure the doctor cited as a straightforward investment in protecting both individuals and the broader community.

"It's $30 to $45 for these vaccines. Go and get one, and you can make sure that you can keep safe," he said.

A Broader Health Reminder Ahead of Summer

The warning comes as Australia heads into its peak domestic travel season, with families, grandparents and young children all likely to be mixing in greater numbers at beaches and regional towns. For the latest on national health and public interest stories, our coverage continues across a range of issues affecting Australian communities this summer.

Health authorities continue to recommend that all Australians keep their vaccinations up to date as a matter of routine, not just in response to specific outbreaks. With whooping cough cases historically rising in cyclical patterns, the approach of a busy holiday season makes this a timely reminder for families across the country.