Abstract
OBJECTIVES--To study trends in human listeriosis and determine possible sources of infection. DESIGN--Descriptive analysis of laboratory reports of human listeriosis together with a survey of subtypes of Listeria monocytogenes isolated from patients and foodstuffs and an interview survey of patients to obtain food histories. SETTING--United Kingdom and Republic of Ireland 1985 to 1990. RESULTS--There was a near doubling in the incidence of human listeriosis in England, Wales, and Northern Ireland between 1985 and mid-1989 followed by a sharp decline. The upsurge in cases was caused largely by two strains of L monocytogenes, which accounted for 30-54% of the annual totals. These strains were less common before 1987 and after July 1989. A survey of paté in England and Wales in July 1989 showed that it frequently contained L monocytogenes. A similar survey in July 1990 showed a reduction in the proportions of samples contaminated. In 1989 patés from a single plant (manufacturer Y) were more likely to be contaminated by L monocytogenes and at higher levels than those from other producers. Most strains of L monocytogenes recovered from manufacturer Y's paté in 1989 were indistinguishable from those responsible for the 1987-9 upsurge in human listeriosis and were uncommon among isolates from patés from other manufacturers and from a wide range of other foodstuffs. Patients infected with the types of L monocytogenes found in paté were significantly more likely to have recently eaten paté than those affected by other strains. The start of the decline in numbers of cases of listeriosis coincided with government health warnings on paté consumption and the suspension of supplies from manufacturer Y. CONCLUSIONS--Contamination of paté was a likely contributory cause of the increase in the incidence of listeriosis between 1987 and 1989.
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- Campbell D. M. Human listeriosis in Scotland 1967-1988. J Infect. 1990 May;20(3):241–250. doi: 10.1016/0163-4453(90)91219-4. [DOI] [PubMed] [Google Scholar]
- Jones D. Foodborne listeriosis. Lancet. 1990 Nov 10;336(8724):1171–1174. doi: 10.1016/0140-6736(90)92778-g. [DOI] [PubMed] [Google Scholar]
- McLauchlin J., Audurier A., Taylor A. G. Aspects of the epidemiology of human Listeria monocytogenes infections in Britain 1967-1984; the use of serotyping and phage typing. J Med Microbiol. 1986 Dec;22(4):367–377. doi: 10.1099/00222615-22-4-367. [DOI] [PubMed] [Google Scholar]
- McLauchlin J., Crofts N., Campbell D. M. A possible outbreak of listeriosis caused by an unusual strain of Listeria monocytogenes. J Infect. 1989 Mar;18(2):179–187. doi: 10.1016/s0163-4453(89)91290-5. [DOI] [PubMed] [Google Scholar]
- McLauchlin J. Human listeriosis in Britain, 1967-85, a summary of 722 cases. 2. Listeriosis in non-pregnant individuals, a changing pattern of infection and seasonal incidence. Epidemiol Infect. 1990 Apr;104(2):191–201. doi: 10.1017/s0950268800059355. [DOI] [PMC free article] [PubMed] [Google Scholar]
- McLauchlin J. Listeria monocytogenes, recent advances in the taxonomy and epidemiology of listeriosis in humans. J Appl Bacteriol. 1987 Jul;63(1):1–11. doi: 10.1111/j.1365-2672.1987.tb02411.x. [DOI] [PubMed] [Google Scholar]
- Morris I. J., Ribeiro C. D. Listeria monocytogenes and pate. Lancet. 1989 Nov 25;2(8674):1285–1286. doi: 10.1016/s0140-6736(89)91902-8. [DOI] [PubMed] [Google Scholar]
- Saunders N. A., Ridley A. M., Taylor A. G. Typing of Listeria monocytogenes for epidemiological studies using DNA probes. Acta Microbiol Hung. 1989;36(2-3):205–209. [PubMed] [Google Scholar]