Annual Data 2011
Information relating to notifications of infectious diseases for 2011 are summarised
as key points with more detailed tables
and charts below. These tables and charts
contain 2011 and previous years data for notifications of infectious disease.
These analyses are for confirmed notifications to the year ended 31 December 2011.
The three cases of botulism notified in 2011 were also confirmed microbiologically.
All three cases were siblings in the same family who consumed a jar of Korma sauce.
The source of contamination of the jar was unknown. The report of the Incident Management
Team is available on the HPS website.
Notifications for measles are on the basis of clinical suspicion. As measles has
become rare in Scotland, due to high uptake of vaccination, it is difficult to diagnose
clinically without laboratory tests. There were 82 measles notifications in 2011
and 24 laboratory confirmed cases. This compares with 93 notifications and 11 laboratory
confirmed cases in 2010. The majority of measles cases and suspected cases continue
to occur in unimmunised or under-immunised individuals.
There were 103 cases of meningococcal infection notified in 2011, compared to 93
in 2010. Despite the small increase in 2011 compared to 2010, the overall trend
has been a decline since the introduction of the Meningococcal C (MenC) vaccine
in 1999, when 329 cases were notified. More than half the cases notified in 2011
(61%; 63 cases) were in children aged under 15 years.
In 2011 there were 607 notifications of mumps compared with 727 notifications in
2010 and 1129 in 2009. Cases continue to be mainly among the young adult age group,
aged 15 to 24, who are often under-immunised against mumps, as they were not routinely
offered two doses of MMR vaccine as children.
There are several organisms which are associated with the development of the clinical
condition necrotising fasciitis. This clinical condition only became notifiable
in Scotland in January 2010. Awareness amongst clinicians of the need to report
this condition was still increasing in 2010/11. Laboratory detections of invasive
disease from one of the key organisms associated with the infection, Group A Streptococcus,
did not show an increase during the period of observation. It is therefore uncertain
whether the increase in clinical reports observed in 2010/11 represents a real increase
in the clinical condition or increased reporting resulting from raised awareness
Pertussis (whooping cough)
There were 85 notifications of pertussis in 2011 compared to 45 in 2010. Although
the number of notifications in 2011 was an increase of 88% compared to 2010, the
notifications in 2011 were less than those reported in 2007, 2008 and 2009 (98,
134 and 104 respectively).
Notifications for rubella are on the basis of clinical suspicion. As rubella has
become rare in Scotland, it is difficult to diagnose clinically without laboratory
tests. There were 20 notifications of rubella in 2011, and no laboratory confirmed
cases. This compares with 39 notifications and one laboratory confirmed cases in
There were 457 notifications of tuberculosis in 2011. This was a decrease of 12.9%
(68 cases) compared to 2010 when 525 cases were notified.
Of the notifications in 2011, 291 were respiratory cases, fewer than the 326 in
2010, and 166 were non-respiratory compared to 199 in 2010.
The decrease in notifications is also mirrored by Enhanced Surveillance of Mycobacterial
Infections (ESMI). The ESMI scheme provisionally reported 453 cases in 2011, compared
to 503 in 2010 which is the first decrease in numbers reported to ESMI since 2005.
Tables and Charts for 2011