Thousands of Shakira fans left the MetLife Stadium rocking on May 15, but now they might have an unexpected encore: a potential measles exposure that’s making vaccination status the new concert swag.

Following a wild night of music and dancing, an out-of-state concertgoer has reportedly brought back more than just memories, as health officials confirmed a measles diagnosis linked to the packed event. With potential symptoms looming until June 6, attendees are encouraged to check their vaccination records, as the only thing worse than hearing 'Hips Don't Lie' is finding out your immunity does.

The concert, which kicked off at a reasonable 7:30 p.m. and continued well into the early hours, attracted thousands of die-hard fans. While Shakira’s impressive vocal range was on full display, it seems the real crowd-pleaser was an almost invisible virus making its theatrical entrance through the crowded aisles. It’s worth noting that singalongs can sometimes be infectious in more ways than one.

According to public health officials, this unfortunate measles incident is more than just a minor hiccup in post-concert bliss. The individual diagnosed with measles was in attendance, seemingly spreading joy (and perhaps some germs) throughout the atmosphere until their viral curtain call came months later. Feel free to bring your air guitars, but please check the vaccination card first.

For those who attended the concert and might now be experiencing a slight twinge of anxiety, the symptoms of measles could develop as late as June 6. Potential signs to watch for include the classic symptoms of rash, fever, dry cough, runny nose, and watery red eyes — all of which, let’s face it, may also correlate with that one friend who went a little too hard on the nachos at the concession stand. So, proceed with caution and perhaps invest in a mirror.

Health officials have warned that the at-risk individuals include those who are unvaccinated or have not previously contracted the disease. This might feel like a public health episode of 'Survivor' but rest assured, most fans should be just fine, provided they know where their MMR vaccination cards are. After all, being caught unprepared at a concert is one thing, but being caught unprepared for an airborne virus is a hard pass.

It's worth mentioning that, as of Tuesday, no additional confirmed cases have surfaced from the concert – yet. Perhaps the concertgoers were aware that a little personal space is a good thing, especially when sharing a venue with a disease that is reported to have spread rapidly, reminiscent of that one popular song on repeat. A low number of cases reported thus far is the health equivalent of hitting the jackpot, but that doesn't mean complacency is the right tune to dance to.

The Measles outbreak in the United States, which has recently passed the troubling milestone of 1,000 cases in 2025, adds even more weight to the proceedings. With health officials reporting three fatalities linked to this viral landscape, the urgency to remain up-to-date on vaccinations is palpable, much like that anticipation before a dramatic drumroll or that perfect high note... assuming everyone is still healthy enough to enjoy it.

Measles is not just a melodrama of the past; it spreads easily through the air whenever someone coughs or sneezes, creating a spicy cocktail of potential discomfort. What’s even more alarming is that these pesky germs can linger airborne for up to two hours. So, if anyone thought they could dodge the bullet by running off-stage, they might want to think again. Remember that vocal warm-up? Consider it a cautionary tale in respiratory etiquette.

For fans wondering if they might be at risk, health officials recommend being vigilant and remaining aware of any signs of illness over the coming weeks. Those who were fortunate enough to revel in the experience should double-check their MMR vaccination or, at the very least, give an impressive high-five to anyone who brings a first-aid kit to future events. It could be the new trend – with sickness disclaimers now popping up on ticket sales as the hottest accessory.

As the health department tunes up their efforts to track this potential outbreak, consider this a gentle reminder: while Shakira's voice might echo through the stadium, the sound of potential illness sneaking around can't be ignored. Concert-goers are encouraged to stay informed or, to paraphrase the popular goddess of music herself, stay vaccinated and hip to the risks. After all, the last thing we need is an epic singalong interrupted by the hacking cough of a viral menace.