Observations with the ultropak microscope on microfilariae of Litomosoides carinii circulating in the liver of a cotton-rat, before and after the administration of Hetrazan

Summary

Microfilariae of L. carinii were observed circulating in the peripheral capillaries of the liver of an infected cotton-rat by means of the Leitz Ultropak microscope. The mf. could be clearly seen as white snake-like organisms, offering little resistance to the blood flow. After intravenous administration of Hetrazan, the majority of mf. adhered, generally by their tails, to the capillary walls and sometimes a leucocyte was also found attached to the tail.