The NHS is to offer a second dose of the vaccine against meningitis B following a fatal outbreak in Kent during March.
The incident saw 20 confirmed cases in total and claimed the lives of sixth-form pupil Juliette Kenny, 18, and a 21-year-old student from the University of Kent, who has not been named.
All of those who contracted the disease needed hospital treatment, with nine ending up in intensive care.
Clinics opened in Canterbury, Ashford, Faversham and Margate on Friday after an initial round of jabs last month saw huge queues of students form, with some having to be turned away due to high demand.