Tuberculosis seasonality in the Netherlands differs between natives and non-natives: a role for vitamin D deficiency
The International Journal of Tuberculosis and Lung Disease, 04/18/2012
Korthals Altes H et al. – A seasonal peak in TB notifications is apparent in non–natives, but is absent in natives. This peak is driven by the seasonality of extra–pulmonary TB [EPTB]) notifications, which are highest in June–July. The contribution of winter crowding is discussed. Vitamin D deficiency, enhancing disease development at the end of winter–early spring, seems the most likely factor explaining the yearly peak in EPTB.