An Introduction to Parasitology by John M. Watson and J. B. Stenlake (Auth.)

By John M. Watson and J. B. Stenlake (Auth.)

Show description

Read or Download An Introduction to Parasitology PDF

Similar infectious disease books

Population health: concepts and methods

Inhabitants well-being encompasses conventional public healthiness and preventive drugs yet emphasizes the total variety of future health determinants affecting the complete inhabitants instead of in basic terms in poor health or high-risk members. The inhabitants overall healthiness process integrates the social and organic, the quantitative and qualitative, spotting the significance of social and cultural components in perform and study.

One Stop Doc Statistics and Epidemiology

Pt. 1. Epidemiology -- pt. 2. Statistical toolkit

Causal inference and scientific paradigms in epidemiology

This anthology of articles on causal inference and medical paradigms in epidemiology covers a number of very important subject matters together with the quest for causal motives, the strengths and boundaries of causal standards, quantitative ways for assessing causal relationships which are appropriate to epidemiology and rising paradigms in epidemiologic learn.

Modern Death: How Medicine Changed the End of Life

There's no extra common fact in existence than loss of life. irrespective of who you're, it really is sure that someday you are going to die, however the mechanics and knowing of that have will fluctuate vastly in today’s glossy age. Dr. Haider Warraich is a tender and magnificent new voice within the dialog approximately loss of life and death begun through Dr.

Additional resources for An Introduction to Parasitology

Example text

7 Platynosomum concinnum. 8 Pseudomphistomum truncatum. principally in cattle, sheep and goats. Genuine human infections are rare, but spurious ones occur not infrequently. The life-cycle is peculiar in that the eggs, after leaving the definitive host in the faeces, hatch only if ingested by an appropriate species of landsnail, such as Cionella lubrica, in which the parasite passes through 50 F. gigantica Fascioloides magna Fasciola hepatica FASCIOLIDAE Pseudomphistomum truncatum Opisthorchis tenuicollis Clonorchis sinensis OPISTHORCHIDAE Eurytrema pancreaticum Platynosomum concinnum Dicrocoelium dendriticum DICROCOELIDAE Parasite Cattle, horses, bison, yaks Sheep, goats, cattle, etc.

Human infection, however, is rarely severe and still more rarely fatal. The life-cycle is similar to that of C sinensis but involves only a single intermediate host, which is usually a water-snail belonging to the genus Lymnaea {L. truncatula in Great Britain). Two redial generations may occur. The cercariae encyst on wet grass or submerged vegetation, which is subsequently 49 AN INTRODUCTION TO PARASITOLOGY eaten by the definitive host. Man usually acquires the infection by consuming infested water-cress.

6 Procercoid larva (develops in body of first intermediate host). 7 Plerocercoid (sparganum) larva (develops in body of second intermediate host after ingestion of infected first intermediate host). Lowerfigure—CyclophyllideanCycle. 1 Enlarged proglottides of adult worm. 2 Adult worm (develops in intestine of definitive host after ingestion of infected intermediate host). 3 Egg (passes out in faeces onto ground and does not hatch until ingested by intermediate host). 4 Onchosphere (hexacanth) larva (liberated in gut of intermediate host).

Download PDF sample

Rated 4.38 of 5 – based on 43 votes