Fears of an outbreak of mumps are increasing after hundreds have fallen ill in a town in the UK.
Students from both universities in Nottingham are among those suffering from viral infection symptoms.
There were about 40 confirmed cases and 220 suspected cases in Nottingham, Public Health England (PHE) confirmed this week.
One student said the infection made her feel "jabbed in the jaw," and had to stay home for weeks, reports Nottinghamshire Live.
Chloe Glazzard, a 20-year-old journalism student at Nottingham Trent University, said, "I got it about two weeks ago and it lasted about two weeks, so I had to lose some of the uni.
"When I first noticed it, I felt as if I had been punched in my chin, and my chin was very sore.
"It made me hot and cold, I struggled to eat while it got really hard and it got bigger, almost like arthritis in my jaw.
"I did not want to leave the house, I went home in Top Valley and stayed home all the time."
Chloe continued:[I] I would say it was an outbreak, I personally know about ten people who had them, but everyone I spoke to said they knew many people who had them.
"I was taking ibuprofen and acetaminophen with codeine, I'm not sure if ibuprofen helped or did not swell, personally I think it came and it was like the mumps do."
Symptoms of mumps include painful inflammation and swelling of the salivary glands on one or both sides of the jaw, fever and headache.
Some people suffer complications that may include inflammation of the pancreas, viral meningitis (inflammation of the brain), inflamed and swollen testicles in men and ovaries in women.
Mumps can also cause deafness.
Vanessa MacGregor, a health protection consultant, said: "We have seen an increase in numbers recently and adolescents and young adults who have not had two doses of MMR vaccine are particularly vulnerable.
"That is why we are working closely with Nottingham Trent University and the University of Nottingham to inform students about mumps and explain why vaccination is important.
"Those who dropped out of school and other young adults who did not receive MMR or who received only one dose should ensure that they accept the MMR vaccination offer.
"However, it is not just students who are at risk and we urge everyone not to receive two doses of the MMR vaccine to do so. MMR also gives immunity to measles and rubella."
To be fully protected, children and adults must have two doses of the MMR vaccine.
A spokesman for Nottingham Trent University said: "Our GP practices have noted a number of potential cases of mumps.
"We inform Public Health England and we continue to support those who have been affected.
"If any student has any symptoms of the disease, we encourage you to visit your doctor as you normally would and inform a relevant staff member about your course if it has an impact on your studies."
The council, NHS and PHE have worked together to deal with the outbreak.