COVID-19 Risk Hits a Four-Year Low — Yet Health Experts Still Recommend Boosters. Here’s Why That Matters.
As the holiday season approaches, bringing with it packed travel schedules, festive gatherings, and office parties, a familiar question is once again on many New Zealanders’ minds: should you roll up your sleeve for another COVID-19 booster?
After nearly four consecutive years of Omicron’s dominance—each summer bringing its own wave—it’s perfectly reasonable to wonder whether another dose is necessary. Most people now carry a decent level of protection, built from earlier vaccine doses and prior infections. That doesn’t make anyone completely immune, but it does reduce the likelihood of severe illness if reinfection occurs.
But here’s where it gets interesting: while the overall risk is now lower than it has been since 2020, some groups remain significantly vulnerable. Adults over 65, pregnant individuals, and those with chronic conditions or weakened immune systems still benefit substantially from a booster before the Christmas rush, especially before travelling.
COVID activity at its lowest since 2020
Recent data paints an encouraging picture. Nationwide figures from Te Whatu Ora show hospitalisations linked to COVID-19 are now at their lowest in four years. The dramatic hospital peaks seen in early 2022 have faded, replaced by a far gentler baseline—around 30 hospital admissions a week, numbers similar to wintertime influenza.
Wastewater monitoring further confirms this decline. Viral traces remain detectable across monitored sites, but only at minor levels—gentle ripples where once there were towering spikes. Genome sequencing backs up this trend too, showing no alarming emergence of new subvariants on the horizon.
Still, even with these promising signs, Omicron hasn’t vanished completely. Medical experts continue to see small infection waves and serious cases, especially among those at higher risk.
Why a booster still matters now
Here’s the part most people underestimate: protection from vaccination doesn’t last forever. Studies show antibody levels drop substantially within months after a dose or infection. Although immune memory remains for the long haul, the immediate shield that prevents severe disease weakens over time—especially in older adults and those with underlying conditions.
That’s why health authorities still recommend an updated booster. The latest Pfizer JN.1 vaccine, currently offered in New Zealand, provides solid immunity against the variants now circulating. It’s free for all eligible individuals, and anyone aged 30 or older can get another dose six months after their last vaccination or infection.
A pre-holiday booster can serve as a timely safeguard—protecting not only the individual but also their whānau and the wider community when hospitals are often stretched thin.
Other infectious threats to keep in mind
COVID-19 isn’t the only concern this season. New Zealand has also faced recent measles outbreaks, reminding health experts of the importance of maintaining strong immunisation coverage. Current data shows vaccination rates for measles, mumps, and rubella have dipped to the low 80% range—dangerously below the threshold needed for herd immunity. Some communities have even lower rates, leaving pockets of vulnerability that imported cases could easily exploit.
Migrant populations and people uncertain of their childhood immunisation status are encouraged to check their records. If in doubt, getting an extra MMR dose is safe, even if you’re already protected.
Staying safe over summer
Aside from viruses, the usual summer culprits—flu and other respiratory illnesses—are still circulating at low levels. Increased travel and indoor celebrations create perfect conditions for transmission. This makes a few simple habits worth keeping: stay home if unwell, test for COVID or influenza when symptomatic, ventilate rooms whenever possible, and consider wearing a well-fitted N95 mask in crowded environments like buses or airports.
Think of these steps as small investments in community well-being during one of the busiest travel seasons of the year.
The bottom line
While the odds of catching COVID this Christmas are lower than ever, boosting your immunity now can help protect families, reduce pressure on hospitals, and keep the festive spirit alive for everyone.
But here’s something worth debating: as the virus becomes more predictable and less disruptive, should boosters remain an annual expectation, or should they become optional for most people? What do you think — are we nearing the end of the COVID booster era, or does continued caution make more sense for now?
