Less than one-third of 5 to 11-year-olds in California are fully vaccinated and are now returning to elementary schools which have no masking requirements.
As Covid-19 hospitalization rates surge in the U.S., public health experts are advising a shift from thinking of the crisis as a pandemic to an endemic.
Con apenas la mitad de sus 227,000 personas vacunadas, el condado está a más de 20 puntos porcentuales por detrás de la tasa de vacunación general del estado.
Booster doses of vaccines are very common. They are part of most childhood and adult vaccine series to ensure a person maintains optimal immunity from a disease.
