Plasmodium
Red blood cells are shown to be infected with P. falciparum, the causative agent of malaria. In this light microscopic image taken using a 100× oil immersion lens, the ring-shaped P. falciparum stains purple.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Ecology of Protists. October 16, 2013."
http://cnx.org/content/m44619/latest/Figure_23_04_03.jpg
OpenStax CNX
CC BY 3.0.
