A space–time analysis of Mycoplasma bovis: bulk tank milk antibody screening results from all Danish dairy herds in 2013–2014

Table 1 Descriptive data and apparent prevalence for each sampling round

Sampling round	1	2	3	4
Duration^a	01 June–31 july 2013	01 August–31 december 2013	27 January–18 march 2014	11 June–01 july 2014
No of test-positive^b	186	55	107	55
No of herds sampled^c	3578	3583	3446	3379
Apparent prevalence^d (%)	5.2	1.5	3.1	1.6
(CI 95 %)^e	(4.5–5.9)	(1.1–1.9)	(2.5–3.7)	(1.2–2.1)

^aDuration of the sample period
^bNumber of test-positive herds for M. bovis in each sampling round
^cTotal number of sampled herds for M. bovis in each sampling round
^dApparent prevalence of M. bovis in each sampling round
^eConfidence interval for the apparent prevalence of M. bovis in each sampling round

ISSN: 1751-0147