The National Immunisation Programme in the Netherlands 2013 - 2014 Every year, RIVM provides an overview of surveillance and developments in the National Immunisation Programme (NIP).
Regional differences in testing rates underestimate incidence of LGV epidemic Until 2003, Lymphogranuloma venereum (LGV), an aggressive form of chlamydia, was considered to be a rare tropical disease, endemic to Africa, Asia and the Caribbean.