the overwintering of eggs, intramolluscal stages and metacercariae of fasciola hepatica under the temperatures of a mediterranean area (madrid, spain).the survival of embryonated and unembryonated eggs, of snails with mature or immature infection and of metacercariae over the winter of a mediterranean area was analyzed. embryonated eggs were more resistant than unembryonated eggs to cold weather, leaving a residual contamination which was responsible for earlier spring infection of the snail. overwintering was similar in snail populations with both mature and immature infections although the lifespan was shorter in the former. both snail popul ...19947886913
seasonal availability of fasciola hepatica metacercariae in a temperate mediterranean area (madrid, spain).in this experiment, conducted over a 3-year period (1988-1990), the seasonal availability of fasciola hepatica metacercariae in a temperate mediterranean area (madrid, central spain) was analysed according to the rhythms of snail infection, the periods of cercarial emission, and the resistance of metacercariae. in this area, snails could be infected from late april to early november. cercarial emission by spring infection started at the beginning of summer and terminated 3-4 weeks later. mid-sum ...19958594843
[dystomatosis produced by fasciola hepatica: three cases in madrid].three cases of hepatic fascioliasis diagnosed in the department of internal medicine are presented. all of the patients live in madrid, all were fed watercress in the last month and the diagnosis was established during the invasive phase and confirmed by serological testing. we emphasized the importance of the tc scan in the correct diagnosis, the ectopic location of the parasite presentation like subcutaneous thoracic nodule and the efficacy of bithionol in the treatment.19989780424
the overwintering of fasciola hepatica eggs under semi-arid and temperate mediterranean climate (madrid, spain).in this experimental work, conducted over two consecutive years (1988 and 1989), we have analyzed the overwintering possibilities of fasciola hepatica eggs deposited in winter in a semi-arid and temperate mediterranean area (madrid, spain). eggs did not survive for more than a week in faeces at environmental moisture conditions. in contrast, over a 75% of the eggs maintained in permanently wet faeces survived winter temperatures, showing no high mortality until important thermic increment from j ...19921519414
Displaying items 1 - 4 of 4