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Pneumococcal infection
Invasive pneumococcal infection is a major cause of mortality
in the UK. Pneumococcal pneumonia is estimated to affect one
in every 1,000 adults each year, with 10 to 20 per cent of
patients dying of the disease.13 Protection against this serious
infection through vaccination is 60 to 70 per cent effective
in the groups for which it is recommended.
Despite recent changes in vaccination policy in the UK which
recommend the use of pneumococcal polysaccharide vaccine in
certain at-risk groups, uptake of the vaccine remains low
in those at risk (patients with chronic kidney, heart, liver
or lung disease, immunosuppression due to disease or treatment,
severe dysfunction of the spleen, or diabetes). There are,
however, pockets of high uptake where local public health
officials have realised the benefits of the vaccine and have
actively encouraged its use.
With increasing competition for limited NHS funds, there
are often arguments on the cost-effectiveness of vaccination.
This may be a reason why pneumococcal polysaccharide vaccine
has not been more widely used, despite being available for
more than 20 years. Data from a recent European study confirm
that pneumococcal vaccination is cost-effective. Its authors
urged public health authorities to consider policies to encourage
everyone aged 65 and over to be vaccinated.14
Flu vaccine
Even in winters when the incidence of flu is low, 3,000 to
4,000 deaths in the UK may be attributed to flu, mainly in
the elderly.15 Current flu
vaccines give up to 80 per cent protection. Annual protection
with a vaccine containing the strains identified by the WHO
as those most likely to cause infection in the next flu season
has been shown to reduce the incidence of bronchopneumonia,
hospital admissions and mortality in those most at risk of
serious complications should they catch flu. The Department
of Health in the UK changed to the recommendations for the
use of flu vaccine in 2000, extending its use to include all
those aged 65 and over.
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