1) It's an FA post. Hardly reputable reporting.
2) If it's true, it's only an issue to people that never got the MMR vaccine (let's not even go down the "vaccines are bad" path).
3) Why is this a surprise if it's true? Large gatherings of people from all over the continent or other continents offers the opportunity for cross-infection of things you wouldn't be exposed to if you were to stay home. Likewise with flying on a plane, or riding on a train, or on a cross-country bus trip.
Am I the only one who sees these things and goes "And the news here is... what, exactly?" Has everyone become a twenty-first century spaz?