The moment a Long Island biology teacher jabbed her son's 17-year-old friend with a Covid-19 vaccine without his parents' permission was caught on video.

Footage made public Monday shows Laura Parker Russo, 54, cleaning the unidentified teen's skin as she prepared to administer a dose of the J&J vaccine into his right arm.

As Russo smiles, the teen can be heard saying: 'There you go, at-home vaccine,' in the video obtained by NBC New York. 

The outlet reported the vaccine being the Johnson and Johnson brand, which is only recommended for adults. She stuck the needle into the boy's arm on New Year's Eve, police said. The vaccine was authentic, but it is unclear how Parker Russo - who has no medical qualifications - obtained it, and cops are now investigating the matter. 

Russo, a Herricks High School biology teacher according to an online bio, was arrested and charged after the teen returned home and told his mother about the shot, according to the Nassau County Police Department.

'The mother had not given permission or authority to have her son injected with a Covid vaccine and called police,' a department press release said.