Measles Outbreak

Measles Outbreak 2009

Case- based rash surveillance*
Laboratory confirmed measles report
Updated 21 December 2011

Suspected measles case-based surveillance
Data presented in this report are generated from the case-based measles surveillance programme and represent specimens received by the National Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS). The case-based measles surveillance programme with laboratory support started in 1998 as part of the National Department of Health’s measles elimination strategy. Blood and urine or throat/nasopharyngeal swab specimens from suspected measles cases (patients with fever >38°C and rash, and at least one of: cough, coryza or conjunctivitis) nationally are submitted to the NICD for laboratory confirmation.
There were five laboratory-confirmed measles cases since the last update. Since January 2011, a total of 8 391 suspected measles cases have been tested. Of these, 1% (91/8 391) were measles IgM positive and 37% (3 152/8 391) rubella IgM positive. Age was reported in 90% (82/91) of measles confirmed cases. Of these, children aged <1 year accounted for 45% (37/82) of the cases with 37% (30/82) occurring in those aged <9 months (Figure 1).

Table 1: Numbers of measles IgM and rubella IgM positive results per province, South Africa: 2011
Newly confirmed cases* 0 0 1 0 0 1 0 1 0 5
2011 Cumulative total 4 2 35 23 1 2 8 8 8 91
**Cases confirmed since the last report. Due to delays in submission of specimens to the laboratory, these specimens may have been taken > 1 week ago.

Figure 2: Age distribution of patients with measles: South Africa 2011

Source: Division of Epidemiology and Virology,NICD
This report includes laboratory confrimed cases tested at the NICD. Data presented are provisional, as reported to date. Positives are analysed by date of collection. Data may be freely reproduced provided due acknowledgement is given to NICD.