In recent years in the UK the number of cases of the viral disease mumps has risen dramatically. In 1988, with the introduction of a new vaccine, the number of infections has fallen dramatically, and rates had been staying low until 2003. Since that time, there was a rapid increase followed by another slow fall in the number of cases. Since the publication of the above figures, the rate felt back again to round about 7000 cases per year. What exactly caused the rise in the first place? Although older adults had not received the new MMR vaccination, they probably had the disease in childhood, and so has already built up some immunity. On the other hand, those born between 1983 and 1986, before the MMR vaccine started to take effect, has received no exposure to the disease in the community because the vaccine was largely eliminated it from the vaccinated age group, and so this group of young adults, now in their early 20s, have not acquired any immunity. To make matter worse, by the end of the century uptake of the MMR vaccine also began to fall, mainly as a result of controversy over its safety. In the 2009 figures it stood at around 80%, well below the immunity level of 95% recommended by the WHO
In recent years in the UK the number of cases of the viral disease mumps has risen
dramatically
. In 1988, with the introduction of a new
vaccine
, the number of infections has fallen
dramatically
, and rates had been staying low until 2003. Since that time, there was a rapid increase followed by another slow fall in the number of cases. Since the publication of the above figures, the rate felt back again to round about 7000 cases per year. What exactly caused the rise in the
first
place? Although older adults had not received the new MMR vaccination, they
probably
had the disease in childhood, and
so
has already built up
some
immunity.
On the other hand
, those born between 1983 and 1986,
before
the MMR
vaccine
started
to take effect, has received no exposure to the disease in the community
because
the
vaccine
was
largely
eliminated it from the vaccinated age group, and
so
this group of young adults,
now
in their early 20s, have not acquired any immunity. To
make
matter worse, by the
end
of the century uptake of the MMR
vaccine
also
began to fall,
mainly
as a result
of controversy over its safety. In the 2009 figures it stood at around 80%, well below the immunity level of 95% recommended by the
WHO