A booster dose, regardless of the type of Covid vaccine, brings neutralising antibodies against all the Omicron sub-variants to appreciable levels, according to the findings published in the journal Science.
Anyone who comes into Google's US work sites will require a negative test and be required to wear surgical-grade masks while at the office, the company said. Anyone who comes into Google's US work sites will require a negative test and be required to wear surgical-grade masks while at the office, Google said.