Schimmer, B.

q fever cluster fever outbreak cause q-fever hospitalization q-fever outbreaks signal infection surveillance disease netherland hepatitis syndromic surveillance lri clusters /june 2007 outbreak fi rst detection syndromic patient space burnetii van den wijngaard report –time abortion space –time signals 4- digit criteria recurrence interval study dutch q-fever abortion waves overlap interval endocarditi recurrence hospitalization data cluster areas recurrence intervals health cluster signal 5 years cluster signals 2007 outbreak q fever outbreak diagnose pneumonia statistic proportion signi placental tissue appendix b endocarditis clusters dairy-goat farms 1 year small-ruminant farms pneumonia patients /june coxiella burnetii 2007. syndrome number journal dairy-goat laboratory source fluenza 2 years q fever reports re flected scan statistic space –time clusters hepatitis cluster discharge diagnoses signi ficance abortion waves population lower-respiratory