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Volume 9, Number 3—March 2003


Tularemia on Martha’s Vineyard: Seroprevalence and Occupational Risk

Katherine A. Feldman*Comments to Author , Donna Stiles-Enos†, Kathleen Julian*, Bela T. Matyas‡, Sam R. Telford§, May C. Chu*, Lyle R. Petersen*, and Edward B. Hayes*
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †Martha’s Vineyard Hospital, Oak Bluffs, Massachusetts, USA; ‡The Massachusetts Department of Public Health, Boston, Massachusetts, USA; §The Harvard School of Public Health, Cambridge, Massachusetts, USA

Main Article

Table 1

Relative seropositivity of Martha’s Vineyard landscapers compared with three control groups, Martha’s Vineyard, 2001a

Population Seropositive landscapers/total no. (%) Seropositive controls/total no. (%) Seroprevalence 
ratio (95% CI) Yates corrected p value
1) Landscapers vs. physicians’ office patients and members of civic organizations 12/132 (9.1) 0/103 (0) Undef (undef, undef) 0.004
2) Landscapers vs. residents (July) 1/99 (1) 9.0 (1.2 to 68.1) 0.02
3) Landscapers vs. residents (October) 0/108 (0) Undef (undef, undef) 0.004

aCI, confidence interval; undef, undefined.

Main Article