A scabies outbreak in a further education college in Gloucestershire.

Scabies outbreaks in England have been reported in hospitals, long-stay wards, acquired immune deficiency syndrome (AIDS) units and residential homes for the elderly. This paper describes the control of an outbreak in a further education college for persons with learning disabilities. In March 2004, four confirmed cases of scabies were reported among a subset of 108 students and 41 staff members. Staff had considerable physical contact with the students who were housed in five groups of homes, individual homes and support centres. Mass prophylaxis was offered to all staff and students, through 39 general practice surgeries. Challenges overcome were: ensuring complete case ascertainment, accessing of up-to-date information about students and staff, achieving a coordinated approach to treatment, securing informed consent and media management. No further outbreaks have been reported. The college has revised its information request form for new students.

Human Vero cytotoxigenic Escherichia coli (VTEC) O157 infection linked to birds.

Vero cytotoxin-producing Escherichia coli O157 (VTEC O157) infections are a threat to public health. VTEC O157 has been isolated from gulls but evidence of transmission to humans from birds has not been reported. We recount an incident of VTEC O157 infection affecting two sibling children who had no direct contact with farm animals. An outbreak control team was convened to investigate the source of infection, its likely mode of transmission, and to advise on control measures. Human and veterinary samples were examined and the human isolates were found to be identical to an isolate from a sample of bird (rook) faeces. Cattle, rabbit and environmental samples were negative. This report provides evidence that birds may act as intermediaries for human infection with VTEC O157.

Audit of suspected meningitis in a district in 1996-1997 and in 1999.

The Public Health Laboratory Service has published guidance outlining appropriate investigations and public health action to control the spread of meningococcal disease. We investigated compliance with this guidance in audits of suspected meningitis cases in our district notified to the public health department between January 1996 and December 1997, and in 1999. The total number of suspected meningitis cases in 1996-7 and in 1999 were 58 and 34 respectively. Meningococcal disease was suspected in 49 and 28 patients respectively, and for 58 (75.3%) of these case notes were found. Rash was more often a presenting sign in 1999. The second audit also showed a non-significant reduction in the proportion of patients given penicillin before hospital admission (22.4% vs. 7.1%, p = 0.12), and in CSF microscopy requests (31% vs. 17.6%, p < 0.5). Requests for meningococcal investigation by blood culture (77.5% vs. 79.4%, p < 0.5) blood PCR (34.5% vs. 64.7%, p < 0.001) and throat swab (25.9% vs. 55.9%, p < 0.005) were increased. Notifications of cases to the public health department within 24 hours of admission were also increased slightly (42.8% vs. 52.9%; p < 0.5). Changes in clinical practice can be achieved through guidelines, audit and feedback. The importance of parenteral penicillin administration prior to hospital admission, appropriate investigations and prompt public health notification should be re-emphasised.

Can calls to NHS Direct be used for syndromic surveillance?

This study assessed whether NHS Direct could be a useful source of surveillance data for communicable diseases, using influenza as a pilot condition. Data on the weekly total number of calls and the number from people reporting influenza-like symptoms to three pilot NHS Direct sites were collected between November 1999 and March 2000. NHS Direct data were compared with routinely available influenza surveillance data. The NHS Direct call rate peaked at 331 per 100,000 population in week 52 of 1999. The percentage of calls for 'influenza-like illness' (one site) peaked at 15% during week 51. Information about weekly call numbers to NHS Direct could be produced in a timely way. It was not clear whether the observed peak in calls reflected a true increase in influenza or whether it was the result of an increase in calls over the Christmas/Millennium holiday period due to more difficulty in accessing other services. The ability to assess the proportion of calls made directly by, or on behalf of, each age group will be of vital importance in interpreting seasonal respiratory disease.

Four linked outbreaks of Salmonella enteritidis phage type 4 infection--the continuing egg threat.

Four outbreaks of Salmonella enteritidis phage type (PT) 4 occurred among guests at functions for which a single commercial caterer supplied food. Retrospective cohort studies were used to describe the epidemiology of three of these outbreaks and identify the vehicle(s) responsible. Of 172 guests at these three events, 47 fitted the clinical case definition for illness and 24 cases were confirmed to have S. enteritidis PT4 infection. Food containing raw egg was identified epidemiologically as the likely vehicle of infection in two of the three outbreaks (odds ratios (OR) and 95% confidence intervals 9.1 (2.2-39.9) and 6.9 (1.2-46.4)). Logistic regression analysis yielded OR = 10.7 (p = 0.0022) and OR = 9.3 (p = 0.015) for egg consumption in two of the outbreaks. These outbreaks highlighted the continuing need to remind the public and commercial caterers of the potential high risks of contracting salmonella from shell eggs. Education of caterers includes advice to obtain eggs and other products from reputable and identifiable suppliers.

Community attitudes to pregnancy, anaemia, iron and folate supplementation in urban and rural Lagos, south-western Nigeria.

OBJECTIVE: To identify community perspectives and attitudes to pregnancy, anaemia, iron and folate supplements during pregnancy in Lagos, south-western Nigeria. DESIGN: Qualitative using focus group discussions, observational data and in-depth interviews. SETTING: Amukoko, a peri-urban slum area and Ibese a rural coastal area in Lagos, south-western Nigeria. PARTICIPANTS: 23 pregnant women and two health-care providers. FINDINGS: Maternal anaemia is not perceived as a priority health problem by pregnant women. Knowledge of the signs and symptoms of anaemia is limited among rural pregnant women. The recognition of maternal complications associated with anaemia is low among pregnant women and some health-care providers. Severe blood loss at or after delivery is sometimes attributed to the excessive use of iron and folate supplements. Sustaining the motivation to continue taking iron tablets and communicating the benefits of iron supplementation which could encourage compliance was also lacking. IMPLICATIONS FOR PRACTICE: An understanding of the local beliefs, attitudes and practices regarding pregnancy is needed to design more effective methods of health education for pregnant women and to provide maternal services which are 'culturally acceptable'.

A cluster of tuberculosis cases in a family.

A 40 year old Indian woman who had recently returned from a visit to India with her eldest son was diagnosed with miliary tuberculosis in January 1994. Contact tracing revealed that her three sons, aged 19, 21, and 22, all had BCG scars from vaccinations administered at birth in India and Heaf tests of grades 2-3. None of them was given chemoprophylaxis, although this was considered, as suggested by the guidelines then available (1990). About 18 months later, the eldest son was notified as a case of tuberculosis. The youngest son, who shared a room with the eldest, developed a right tuberculous pleural effusion over three years after his mother became ill. The 41 year old husband of the index case and their 21 year old son remain well at the time of this report and are being followed up. These cases highlight the importance of stringent follow up, contact tracing, good liaison between general practitioners and chest clinic staff, and chemoprophylaxis for the contacts of tuberculosis cases. Guidelines about the management of contacts of sputum positive cases over 16 years old need to be clarified. A history of a recent overseas trip should raise suspicions of infection with tuberculosis.