UK health officials have identified seven more cases of meningitis, as part of the latest outbreak in Kent, taking the total number of cases to 27. They expect the numbers to rise in the coming days.The UK Health Security Agency noted that it has expanded the Meningitis B vaccine regimen to everyone who has been offered preventative antibiotic treatment as part of this outbreak. “15 laboratory cases are confirmed and 12 notifications remain under investigation, bringing the total to 27,” the UKHSA said in a statement. “Currently, cases have been confirmed in students at 4 schools in Kent, as well as one student at a higher education institution in London (who is confirmed to be directly linked to the outbreak),” it added. Two students -- a 21-year-old student at the University of Kent and a teenage student at a school in the town of Faversham have died in the outbreak. A 9-month-old baby from Folkestone is reportedly battling for life in the intensive care unit. Meanwhile, another university in the city confirmed a case of meningitis. The student at Canterbury Christ Church is believed to be a man who was at the nightclub and part of the initial cluster of 20 known cases, who visited Club Chemistry in Canterbury between March 5 and 7. "We are not in the position yet to say definitively that it's been contained," Dr Anjan Ghosh, Director of Public Health at Kent County Council, told BBC Radio, adding that secondary transmissions needed to be ruled out. Calling the outbreak “unprecedented”, Health Minister Wes Streeting said: “The number of suspected cases was expected to increase in the coming days because the disease had a seven- to 10-day incubation period”, Reuters reported. In a typical year, Britain sees about 350 cases, roughly one per day, according to government estimates. In addition to the approximately 5,000 students who were initially contacted, vaccination will now be extended to everyone who has been offered preventative antibiotic treatment as part of this outbreak, the UKHSA said. Why The Cases Are Rising While it remains unclear why the outbreak has been so large, “the large number of cases all originating from what seems to be a single event” is particularly striking, Prof Robin May, the chief scientific officer at the UKHSA, told the BBC Breakfast. May said that "there might be something about the kind of behaviors that individual people are doing." Another probable reason "is that the bacteria may have evolved to be better at transmitting". Both the UKHSA and the European Centre for Disease Prevention and Control maintain that the risk of invasive meningococcal disease to the general population in Europe is "very low".Also read: From Vaping to Worm Attack: 5 Unimaginable Ways to Contract Meningitis Can The Outbreak Be Prevented? The UKHSA noted that the key intervention to protect people and halt the spread remains for people to come forward for antibiotic treatment -- effective in preventing contraction and spreading in 90 percent of cases. In addition, a targeted MenB vaccination program is also being introduced for longer-term protection. “By extending the vaccination program to everyone who has been offered preventative antibiotics, we are taking an important additional step to protect those most likely to have been exposed. The message is simple: if you have had the antibiotic, you are also eligible for the vaccination,” said Professor Susan Hopkins, Chief Executive of the UKHSA. However, Trish Mannes, UKHSA Regional Deputy Director for the South East, noted that even after two doses, the MenB vaccine “does not protect against all strains of meningococcal disease, nor against all infections that can cause meningitis. It also does not prevent the bacteria from being carried and spread in the community”. The UKHSA thus warned people to be aware of the signs and symptoms of invasive meningococcal disease, and to seek immediate medical attention if they or anyone they know develops these signs and symptoms. Common symptoms include: rash sudden onset of high fever severe and worsening headache vomiting and diarrhoea joint and muscle pain seizures.