This discrepancy in the inhibitory effect on excystment may be due to differences in the permeability of the cyst wall.
Depending on the geographical situation, the nature of infected hosts and the sites of infection, cysts may have different fertility rates.
In both cases these dimensions do not include the thickness of the cyst wall.
Cyst counts were transformed to instantaneous rates of infection.
The walls of the cysts contain prominent smooth muscle and elastic tissue.
Investigation of the latter would be assisted by tests able to distinguish between infection acquired from oocysts or tissue cysts.
In the heart, tissue cysts were in the pericardium, myocardium, endocardium and in the mitral valves.
A feature of the study was the determination of the viability of protoscoleces from hydatid cysts of livestock.
