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J Epidemiol Community Health 54:766-769 doi:10.1136/jech.54.10.766
  • Public health policy and practice

A pseudo community outbreak of legionnaires' disease on Merseyside; implications for investigation of suspected clusters

Table 1

Suspected/confirmed cases of legionnaires' disease Merseyside : January/February 1995

Patient Age Sex Case category Risk factors Evidence of other infection
Confirmed Presumptive
1 441-150 F + +
(S)
2 37 M + +
(S)
3 18 F + Influenza B
serology : CFT 1:20 to 1:320
4 27 F + Mycoplasma pneumoniae
serology : CFT <20 to 160
5 19 M + + Campylobacter
(1-153) (S) serology positive
6 60 F + + Strep pneumoniae
(S)(C) positive blood culture
7 73 F + ? Q Fever
serology : CFT 80
C burnettii 2
C burnettii IgG (IF/1280)
  • CFT: Complement fixation test. IF = Indirect immunofluorescent antibody test.

  • 1-150 = Died, S = smoker, C = chronic lung disease,

  • 1-153 = pneumonia not confirmed by chest radiography.

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