Prevalence of Mycoplasma gallisepticum and Mycoplasma synoviae in commercial poultry, racing pigeons and wild birds in Belgium

Figures & data

Table 1. Wild birds sampled by hunters and sampled at bird rescue centres in Belgium in 2013–2014.

Species	Latin name	Samples	Year
Mallard	A. plathyrhynchos	57	2013, 2014
Greylag goose	Anser anser	4	2014
Mute swan	Cygnus olor	1	2013
Common pheasant	Phasianus colchicus	7	2013, 2014
Grey partridge	Perdix perdix	6	2013
Green peafowl	Pavo muticus	1	2013
Common quail	Coturnix coturnix	1	2013
Domestic pigeon	C. livia	28	2013, 2014
Common wood pigeon	C. palumbus	80	2013, 2014
European jackdaw	C. monedula	13	2013, 2014
Carrion crow	Corvus corone	35	2013, 2014
Eurasian magpie	Pica pica	10	2014
Eurasian jay	Garrulus glandarius	2	2014
Tawney owl	Strix aluco	13	2014
Barn owl	Tyto alba	7	2014
Little owl	Athene noctua	6	2014
Long-eared owl	Asio otus	1	2014
Common buzzard	Buteo buteo	1	2013
Eurasian coot	Fulica atra	2	2014
Herring gull	Larus argentatus	16	2013, 2014
Grey heron	A. cinerea	4	2013, 2014
Common kestrel	Falco tinnunculus	2	2014

Figure 1. Map of Belgium showing all M. gallisepticum-negative (black) locations and M. gallisepticum-positive (red) locations in 2013–2014.

Table 2. Prevalence of M. gallisepticum in commercial poultry, racing pigeons and wild birds in Belgium in 2013–2014.

	Number positive animals/number samples	Estimated bird prevalence	95% confidence interval (%)
Layers^a	47/5220	0.9	0.7–1.2
Broilers^b	33/1224	2.7	1.9–3.8
Turkeys^a	0/1020	0	0–0.4
Racing pigeons^c	0/56	0	0–6.4
Wild birds^c	5/297	1.7	0.7–3.9
House sparrows^c	0/401	0	0–0.9
Serum collections^a	0/192	0	0–2

Results were obtained by: ^aELISA, ^bRT-PCR, ^cELISA and RT-PCR.

Table 3. Flock prevalence of M. gallisepticum per province in broilers in Belgium in 2013–2014.

	Positive flocks/number sampled flocks	Estimated flock prevalence (%)	95% CI (%)
West Flanders	2/29	6.9	1.9–22
East Flanders	1/15	6.7	1.2–29.8
Antwerp	0/18	0	0–17.6
Flemish Brabant	1/8	12.5	2.2–47.1
Limburg	1/12	8.3	1.5–35.4
Walloon Brabant	0/1	0	0–79.3
Liège	0/4	0	0–49
Hainaut	1/5	20	3.6–62.4
Luxembourg	2/4	50	15–85
Namur	0/6	0	0–39

Figure 2. Map of Belgium showing all M. synoviae-negative (black) locations and M. synoviae-positive (red) locations in 2013–2014.

Table 4. Prevalence of M. synoviae in broilers, wild birds and house sparrows in Belgium in 2013–2014.

	Number positive birds/number samples	Estimated bird prevalence (%)	95% CI (%)
Broilers	158/1224	12.9	11.1–14.9
Wild birds	4/100	4	1.6–9.8
House sparrows	12/401	3	1.7–5.2

Samples from all birds were tested with RT-PCR.