US data show rising 'breakthrough' infections among fully vaccinated

Some 25% of SARS-CoV-2 infections among Los Angeles County residents occurred in fully vaccinated residents from May through July 25, a period that includes the impact of the highly transmissible Delta variant, US officials reported on Tuesday.

The data, published in the US Centers for Disease Control and Prevention's weekly report on death and disease, shows an increase in so-called "breakthrough" infections among fully vaccinated...