Featured October Print
F. colour SEM of oocysts on stomach of Anopheles
False-colour scanning electron micrograph of the stomach wall of a mosquito Anopholes stephansii infected with malarial parasites Plasmodium. The small rounded objects covering the outside stomach wall are oocysts, a stage in the life cycle of the parasite. The oocysts grow in size & the contents divide to form sporozoites, which are dispersed through the body cavity when the oocyst bursts. The released sporozoites eventually reach the salivary gland of the mosquito & are transmitted to humans when the female takes a blood meal
© LONDON SCHOOL OF HYGIENE & TROPICAL MEDICINE/SCIENCE PHOTO LIBRARY.