A bizarre, life-threatening tick-borne illness has made hundreds residents of Martha’s Vineyard allergic to red meat and dairy — turning many of them into forced vegans and “social pariahs” at the height of BBQ season on the ritzy island. Skyrocketing cases of alpha-gal syndrome — a disease spread by bites from the Lone Star Tick— have ripped through the scenic summer hotspot with a total of 523 reported last year, according to the Times of London. “I woke up at 2 a.m. with major stomach cramps and thought I had food poisoning,” said Andrew Keenan, a 58-year-old former chef, who...