The second is that “we don’t understand how the teenager got infected,” she said. Her third concern is how government ...

Illegal cattle ranching in Central America has led to the spread of a deadly parasite long thought to be eradicated, and ...

Santa Clara County had a previous whooping cough outbreak in 2019 with 172 cases. San Diego County has the most cases reported in the state, with 470 through Sept. 30. The last time Contra Costa ...