A biology teacher in New York, Laura Russo, was detained on New Year's Eve after allegedly administering the jab at her home without consent from the boy's parents, according to the police.

The teenager is reportedly to be a friend of her son.

It has not yet been confirmed which vaccine the boy was given, but reports have suggested one from Johnson & Johnson, which is currently the only approved for adults in the United States. 

This is the only vaccine that is approved for those under 18 in the US is Pfizer Jab. It is not yet confirmed how MS Russo obtained the vaccine, with Nassau Police Commissioner Patrick Ryder saying it was "under investigation."

Vaccination can be dangerous if administered incorrectly, with doctors and trained professionals responsible for checking the vaccine is within date, taking the person's medical history, and monitoring them for a reaction.

The teacher is being charged with unauthorized practice of a profession and has a court hearing scheduled for January 21.

If convicted, the 54-year-old teacher might have to face up to four years in prison.