When another mosquito bites the infected person, the parasites, now in a form called gametocytes
, complete their life cycle in the insect.
The same approach was used to investigate relationships between virulence and transmission, with gametocyte
density as the response variable and the virulence measure as the predictor variable.
(5) Hemoproteus gametocytes
also contain refractile iron pigment that is observed in peripheral blood smears.
almost completely encircled the erythrocyte nucleus and markedly displaced laterally.
Bradyzoites that do not become gametocytes
penetrate the intestinal epithelial cells of cats and multiply as tachyzoites (motile infective stage).
The newly discovered shift toward a more equal ratio likely occurs, says Paul, because an infected host mounts an immune response that hinders the male gametocytes
' swimming ability.
The parasitemia and percentage of gametocytes
were monitored daily beginning one-week post-infection (PI).
The basic requirements for local transmission of malaria--including persons (who may or may not be ill) with malarial gametocytes
in their blood (as was documented in Houston), competent vectors, and conducive weather conditions--exist in many areas of the United States.
Malaria renders mice most susceptible to mosquito feeding when gametocytes
are most infective.
These species may transmit gametocytes
more efficiently at low parasite densities; a recent study found increased P.
Hypertrophied (50-70 [micro]m) gametocytes
containing basophilic intranuclear inclusions and condensed peripheral chromatin, typical of viral gametocytic hypertrophy (Fig.