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Respiratory virus season is around the corner, and we’re getting this question a few times per week right now. We’re now late enough into October that it’s probably a good time to get both shots.
Usually we recommend that you get your flu shot by Halloween, so if you haven’t yet, this week is a great time to schedule an appointment (or walk in) at your local pharmacy.
COVID is a bit trickier to time perfectly. You can get it right now for protection against severe disease, which should last you through the bulk of the season. But if you’re trying to protect against getting infected at all, you’ll need to time it just before a wave, which is tricky. For most people, convenience is key, so our general recommendation is just to get your COVID shot whenever you go in for your flu shot. If you really want to maximize coverage, we’d recommend about 2 weeks before any big travel or event that you can’t miss, and no later than the end of November for peak protection during the busy holiday season.
You can get both shots at the same time; it’s both safe and effective. The most common side effect is a sore arm, so you may choose to get one in each. If in the past you’ve been seriously affected after mRNA shots with 24 hours of flu-like symptoms (fever, body aches, etc.), sometimes it can be a bit amplified by getting both at once, so you may choose to space them out. You can also try a different vaccine. Novavax, the non-mRNA option, has been shown to cause fewer temporary side effects like fever and aches, so if you’re dreading the COVID shot because it will make the next day miserable, know that that’s an option to try before you forgo the shot altogether.
Ultimately, our recommendation here is to make an appointment for this week or next and just get both shots if you’re tight on time. The best time to get a shot is the time you’ll actually go do it.
For more detailed analysis of all of this including RSV vaccines, we highly recommend YLE’s 2025 Fall Vaccine Guide:

Sources: YLE, Washington Post
It’s always hard to predict how bad a particular flu season will be, but we have a few tools in our belt.
One thing we do is look to the Southern Hemisphere, which has its winter flu season during our summer. There’s good news on that front: this year’s flu shot effectiveness was around 50%, which is pretty good for an annual flu vaccine. Remember, flu shots are “good but not great” (to quote our friend Dr. Mike Osterholm) at preventing flu infections in the first place, but they’re really good at preventing flu deaths.
On the other hand, there have been some large flu outbreaks in Japan and Taiwan recently that are concerning signs of what may be to come. Flu shot uptake has continued to decline steadily, and we expect this year to be even lower than last. That means more people will get seriously sick with flu, and more could die. This is concerning on the heels of last season, which saw the highest number of pediatric deaths since we started tracking that stat 20 years ago. 280 children have died in the US this year from flu, so it’s not the same as any old cold.
If you’re planning your staffing for winter, keep in mind that we’ve seen peaks after the holidays for the last few winters. January is almost always the month with the highest number of sick calls among ZHH’s clients. It makes good sense to consider staffing up for the last few weeks of December and the first few of January knowing that you’ll likely have some employees who come home from holiday gatherings with the unwelcome gift of flu.
We covered the increased risk of bird flu to hunters last week. This week, we read about another way that they’re at the front lines of infectious diseases. Chronic wasting disease (CWD) and epizootic hemorrhagic disease (EHD) are ravaging U.S. deer populations in some areas, and taking a big economic toll on hunters.