that cases where at least one of the tests results was missing
were included in the numbers given in the text, but
were excluded in Table 1. Descriptive statistics of the relationship
between the RF and both the dependent variables,
high SCC and infection with a major pathogen, for the Californian
and Dutch data are given in Table 2. The prevalence
of CAEV in the Californian study was 51% (205/403 goats
tested suspect or positive).