Table 1.

Seroprevalence, sample sizes, and 95% confidence intervals for selected pathogens in polar bears captured on the coast and sea ice of the southern Beaufort Sea, Alaska, USA, 2007–2014.

	C. burnetii	T. gondii	Brucella spp.	F. tularensis	N. caninum
seropositive (n)	38	33	18	5	5
seronegative (n)	100	105	120	103	133
mean seroprevalence	27.6%	23.9%	13.0%	4.8%	3.7%
95% CI	20.4–35.7	17.1–31.2	8.1–19.7	1.9–10.8	1.2–7.3