The author outlines parasitologic features of human plasmodia and Anopheles, the public health and human aspects of this protozoan infection. Starting from the etymology of the words "mal' aria," the author describes a brief but proven history of social importance, dwelling not only on the clinical, medical or scientific aspects. In other words, the author dwells upon the literary, the customar...

Factors Influencing Size of the Protozoal Population .................................................................. 28 Diurnal Variations in the Holotrich Population ............................................ ......................28 IN VITRO CULTIVATION OF HOLOTRICH PROTOZOA...........................................................28 TECHNIQUES FOR ISOLATION OF HOLOTRICH CILIATES FROM R...

1552 www.thelancet.com Vol 382 November 9, 2013 Crypto sporidium was thought to be restricted to immunocompromised hosts, but there has been evidence for more than 20 years that this is not the case. Several reports of waterborne epidemics attest to this—the largest aff ecting more than 400 000 (mostly im muno competent) people. Cryptosporidiosis aff ects young children, and it is well known no...

Zoiial cenitrifuge rotors are relatively large, hollow rotors containing dlensitv gra(lients ani(l offer the poszib)ility of qjumltitative se)aration of qualitatively pure particulate comlpollents of liological systemis (1, 2). The possibility is a con.seq(uenlce of the principles of centrifugationi in density gradients but to achieve it, xve shall have to fashioin inlprove(l tecliiqu1es of zon...

BACKGROUND While in developed countries the prevalence of allergic diseases is rising, inflammatory diseases are relatively uncommon in rural developing areas. High prevalence rates of helminth and protozoan infections are commonly found in children living in rural settings and several studies suggest an inverse association between helminth infections and allergies. No studies investigating the...

Accumulation of 14alpha-methylated sterols or delta8-sterols in Ustilago maydis affected three aspects of the plasma membrane H+-ATPase. Proton transport was reduced in delta8-sterol-accumulating samples, due to an altered H+/ATP stoichiometry. ATP hydrolytic activity was increased, but no direct correlation with the extent or type of abnormal sterol accumulated could be drawn. Finally, Western...

Diseases caused by insect borne trypanosomatid parasites are significant, yet remain a neglected public health problem. Leishmania, a unicellular protozoan parasite is the causative organism of Leishmaniasis and is transmitted by female phlebotamine sandflies affecting millions of people worldwide. In the wake of resistance to pentavalent antimonial drugs, new therapeutic alternatives are desir...