. Using these PCR methods, we found that the analytical sensitivity was <1 tachyzoite
of Neospora spp.
GRA7 and ROP2 could express in two important stages of Toxoplasma life cycle, tachyzoite
gondii are not necessarily indicative of a symptomatic infection, whereas detection of tachyzoite
DNA in biological fluids as cerebral, ocular, congenital or disseminating forms can characterize a symptomatic infection.
Identification and characterization of Neospora caninum tachyzoite
antigens useful for diagnosis of neosporosis.
In addition, recombinant SAG1 and BAG1 antigens were used since these are typical antigens characterising the tachyzoite
and bradyzoite stage of T.
Following infection, there is brief acute stage characterized by the proliferative tachyzoite
stage of the parasite, but thereafter the parasite undergoes latency, characterized by slowly growing bradyzoites within tissue cysts.
gondii is found in three morphologically different strains which are named as tachyzoite
, bradyzoite, and sporozoite.
However, when viewing a Toxoplasma gondii tachyzoite
at higher magnification (B, D, and F), there is a marked difference.
Stage conversion between tachyzoite
and bradyzoite forms of Toxoplasma is associated with morphological and molecular biological changes, including stage-specific antigen expression and alterations to metabolism .
showed that the serum levels of IL-10 in mice were increased following DNA vaccination with recombinant chimeric tachyzoite
After the organism enters the human host, it rapidly proliferates into the tachyzoite
form and penetrates all nucleated cells within the body.
It changes into a form that repeatedly clones itself, known as a tachyzoite
. "It's a lovely banana-shaped organism, and it glides," says parasitologist Christopher Hunter of the School of Veterinary Medicine at the University of Pennsylvania.