Rapid tests questioned

Examination of papers in questioned documents: differentiation by chemical tests.

Malaria rapid diagnostic tests.

Global efforts to control malaria are more complex than those for other infectious diseases, in part because of vector transmission, the complex clinical presentation of Plasmodium infections, >1 Plasmodium species causing infection, geographic distribution of vectors and infection, and drug resistance. The World Health Organization approach to global malaria control focuses on 2 components: ve...

Asbestos findings questioned.

The relationship between autocrine interferon (IFN) production and the expression of class I Major Histocompatibility Complex (MHC) membrane glycoproteins in vitro was investigated in a panel of murine transformed cells of nonhaemopoietic origin. The panel included 11 cell lines of H-2Kb haplotype derived from fibrosarcomas, carcinomas and melanoma, and from transformed fibroblasts. IFN activit...

Key Alzheimer's findings questioned.

When Stephen Strittmatter discovered an unexpected link between key proteins in two devastating brain maladies — Alzheimer’s disease and Creutzfeldt–Jakob disease (CJD) — researchers in the field agreed that he was on to something big. But a year on, conflicting results, including findings published in Nature this month, have clouded that rosy picture and highlight the challenge faced by resear...

Rapid Ebola tests hold promise

When the Ebola virus disease outbreak was confirmed in Guinea last year, Dr Pierre Formenty and his team working on emerging and dangerous pathogens at the World Health Organization (WHO) in Geneva called on their network of collaborating laboratories for help. “When the outbreak started it was small, so we deployed two mobile field labs in Guinea, one in Guékédou run by the European Union Mobi...