Results
Undulant fever was endemic to the islands with periodic outbreaks of
major epidemics (see Figure 2). Since there was no significant
difference in the mean number of cases between Malta and Gozo, the
brucellosis numbers for the two islands were pooled. The mean number of
undulant fever cases was 3.611 per 1000 living over the study period.
Figure 2. Undulant fever cases in the Maltese Islands: 1919-1954.