Federal health officials on Thursday called for more testing of employees on farms with bird flu after a new study showed that some dairy workers had signs of infection, even when they didn’t report feeling sick. Farmworkers in close contact with infected animals should be tested and offered treatment even if they show no symptoms, said Dr. Nirav Shah, principal …
Central Valley, where 1/4 of U.S.'s food is grown, faces extreme heat for a 2nd week The central valley of California produces a quarter of the nation's food. AILSA CHANG, HOST: A heat wave is scorching big parts of California's Central Valley, where one quarter of the nation's food is grown. QUINTANILLA: She says the farm didn't have the adequate …