Why vaccination of even "non-severe" children diseases is necessairy and should be compulsory for all children:
Mumps
The mumps are caused by a
paramyxovirus, and are spread from person to person by
saliva droplets or direct contact with articles that have been contaminated with infected saliva. The
parotid glands (the salivary glands between the ear and the jaw) are usually involved. Unvaccinated children between the ages of 2 and 12 are most commonly infected, but the infection can occur in other age groups.
Orchitis (swelling of the
testes) occurs in 10–20% of infected males, but sterility only rarely ensues; a
viral meningitis occurs in about 5% of those infected. In older people, the
central nervous system, the
pancreas, the
prostate, the
breasts, and other organs may be involved.
The
incubation period is usually 18 to 21 days, but may range from as few as 12 to as many as 35 days.
[2] Mumps is generally a mild illness in children in developed countries. After adolescence, mumps tends to affect the ovary, causing
oophoritis, and the testes, causing
orchitis. The mature testis is particularly susceptible to damage from mumps which can lead to infertility. Adults infected with mumps are more likely to develop severe symptoms and complications.
Measels:
Complications with measles are relatively common, ranging from relatively mild and less serious
diarrhea, to
pneumonia and
encephalitis (
subacute sclerosing panencephalitis),
corneal ulceration leading to
corneal scarring[1]. Complications are usually more severe amongst adults who catch the virus.
The
fatality rate from measles for otherwise healthy people in developed countries is low: approximately 1 death per thousand cases. In
underdeveloped nations with high rates of
malnutrition and poor
healthcare, fatality rates of 10 percent are common. In
immunocompromised patients, the fatality rate is approximately 30 percent.
Measles is a significant infectious disease because, while the rate of complications is not high, the disease itself is so infectious that the sheer number of people who would suffer complications in an outbreak amongst non-immune people would quickly overwhelm available hospital resources. If vaccination rates fall, the number of non-immune persons in the community rises, and the risk of an outbreak of measles consequently rises.
Rubella:
Rubella can affect anyone of any age and is generally a mild disease. However, rubella can cause
congenital rubella syndrome in the fetus of an infected pregnant woman. Usually occurs between 14 - 21 weeks of pregnancy.
