In other cases the infection of the first host is brought about by the ingestion FIG.
The increased ingestion of bacteria in active immunity would seem to depend upon the presence of immune opsonins in the serum.
Prolonged ingestion of arsenic may cause pigmentary changes in the skin.
The other plan is to use an exclusively meat diet, combined with the ingestion of a large quantity of hot water, so as to cause free elimination.
It develops from direct ingestion of the larvae.