 |
A fertilized Ascaris
egg, still at the unicellular stage. |
 |
Unfertilized and fertilized eggs (left and right, respectively). |
 |
Unfertilized egg. |
 |
Fertilized egg. |
 |
Unfertilized egg with no
outer mammillated layer (decorticated). |
 |
Three fertilized eggs (one decorticated, on the right) of Ascaris
lumbricoides. |
 |
Two fertilized eggs from the same patient, where embryos have begun to
develop (this happens when the stool sample is not processed for several
days without refrigeration). |
 |
 |
Egg containing a larva, which will be infective if ingested. |
 |
Larva hatching from an egg. |
 |
An adult Ascaris
worm. |
 |
Life cycle
of Ascaris lumbricoides. |
