Parotid gland
Mumps is seen to be a common cause of parotid gland swelling - 85% of cases occur in children younger than 15 years. The disease is highly contagious and spreads by airborne droplets from salivary, nasal, and urinary secretions. Symptoms include oedema in the area, trismus as well as otalgia. The lesion tends to begin on one side of the face and eventually becomes bilateral. The transmission of the paramyxovirus is by contact with the infected persons saliva. Initial symptoms tend to be a headache and fever. Mumps is not fatal, however further complications can include swelling of the ovaries or the testes. Diagnosis of mumps is confirmed through viral serology, management of the condition includes hydration and good oral hygiene of the patient requiring excellent motivation. However, since the development of the mumps vaccine, given at the age of between 4–6 years, the incidence of this viral infection has greatly reduced. This vaccine has reduced the incidence by 99%.
MMR vaccine controversy
The MMR scare caused a low percentage of mumps vaccination (less than 30%), which resulted in outbreaks in Japan. There were up to 2002 measles-caused deaths in Japan while there were none in the UK, but the extra deaths were attributed to Japan's application of the vaccine at a later age. A spokesman for the Ministry of Health said that the discontinuation had no effect in measles, but also mentioning that there were more deaths by measles while MMR was being used. In 1994 the government dropped the vaccination requirement for measles and rubella due to the 1993 MMR scare. Japan is nowadays the only developed country with large measles epidemics. It has been called a "measles exporter" by the US Centers for Disease Control and Prevention. As another consequence of the scare, in 2003, 7 million schoolchildren had not been vaccinated against rubella.