Major outbreak fears as world's most contagious disease hits baseball game attended by 40,000 | 2 May 2025 | Texas health officials are sounding the alarm after confirming a measles case in an adult who recently attended a baseball game at Globe Life Field. According to Denton County officials, the unidentified patient was among a crowd of 39,244 people at the Texas Rangers vs Los Angeles Dodgers game on April 19. The patient, whose vaccination status remains unknown, visited several locations between April 19-22 around Denton County and has now become the first case in the area. Since measles symptoms appear within seven to 14 days after contact with the virus, Denton County officials are asking locals in the county to monitor themselves for 21 days.