A New York school teacher with no formal medical qualification has been arrested for allegedly giving a Covid vaccine to a student, say officials.

Police say Laura Russo administered the dose at her home despite having no legal authorisation to give jabs, or consent from the boy’s parents.

Ms Russo, 54, who teaches biology, was held on New Year’s Eve and could face four years in prison if convicted.

The 17-year-old boy had reportedly wanted the vaccine.

Injections can be dangerous if administered incorrectly. Doctors and licensed medical workers have to verify that a vaccine is not counterfeit or expired. Patients should also be asked about their medical history and have their reaction monitored after a jab.