title: [Seasonal variations in microfilarema and effects of ambient temperature in dogs parasitized by Dirofilaria repens].
abstract: 1 - Dogs infected with Dirofilaria repens from Italy were found to show seasonal variations in the number of microfilariae in the peripheral blood. 2 - The rise in the number of microfilariae occured in August and September and is coincidental with the higher probability of trasmission. 3 - Rise and fall of microfilaraemia was induced experimentally by exposure of the host to high and low temperatures respectively. 4 - The importance of such variations in microfilaraemia is stressed in relation to the evaluation of the infection from a clinical, pharmacological and epizoological point of view.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D004184:Dirofilariasis / Q000469:parasitology / Q000662:veterinary*; D004283:Dog Diseases / Q000469:parasitology*; D004285:Dogs / Q000469:parasitology; D012621:Seasons; D013696:Temperature
vernacular_title: Variazioni stagionali della microfilariemia ed effetto della temperatura ambientale in cani parassitati da Dirofilaria repens