Fig. 4From: The inverted cup device for blood transfer on malaria RDTs: ease of use, acceptability and safety in routine use by health workers in NigeriaHealth worker opinions on the inverted cup BTD and the pipette.*1 = very difficult; 2 = not easy; 3 = little bit easy; 4 = easy; 5 = very easy. **1 = great risk; 2 = quite some risk; 3 = little risk; 4 = very little risk; 5 = no risk. ***1 = not appropriate; 2 = little appropriate; 3 = manageable; 4 = appropriate; 5 = very appropriate. IC inverted cup BTD, P pipette, N number of observationsBack to article page