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BackgroundAlthough it is accepted that long-lasting insecticidal net (LLIN) use is an effective means to prevent malaria, children aged 5 to 15 years do not appear to be sufficiently protected in Madagascar; the malaria prevalence is highest in this age group. The purpose of this research is to summarize recent qualitative studies describing LLIN use among the Malagasy people with a focus on children aged 5–15 years.MethodsQualitative data from three studies on malaria conducted between 2012 and 2016 in 10 districts of Madagascar were analysed. These studies cover all malaria epidemiological profiles and 10 of the 18 existing ethnic groups in Madagascar. A thematic analysis was conducted on the collected data from semi-structured interviews, direct observation data, and informal interviews.ResultsA total of 192 semi-structured interviews were conducted. LLINs are generally perceived positively because they protect the health and well-being of users. However, regional representations of mosquito nets may contribute to LLIN lower use by children over 5 years of age including the association between married status and LLIN use, which leads to the refusal of unmarried young men to sleep under LLINs; the custom of covering the dead with a mosquito net, which leads to fear of LLIN use; and taboos governing sleeping spaces for siblings of opposite sexes, which leads to LLIN shortages in households. Children under 5 years of age are known to be the most vulnerable age group for acquiring malaria and, therefore, are prioritized for LLIN use when there are limited supplies in households. In contrast, children over 5 years of age, who are perceived to be at less risk for malaria, often sleep without LLINs.ConclusionsPerceptions, social practices and regional beliefs regarding LLINs and vulnerability to malaria contribute to the nonuse of LLINs among children over 5 years of age in Madagascar. Modifying LLIN policies to account for these factors may increase LLIN use in this age group and reduce disease burden.

International audience; This article analyzes some unintended consequences of the introduction of Scots, Scotland's nonstandardized vernacular, in a primary school. I show that the lack of established definition of the language or standardization entails three different processes: first, indexical links are established between Scots and a number of social properties (amusement, lack of seriousness); second, the pupils are othered in a process that constructs them as speakers of Scots; third, that process is completed by the reversal of this latter proposition: what the children speak is Scots (and not English) because of their geographic (and covertly social) origin, locking them in an identity as speakers of nonstandard/substandard language. This analysis allows me to discuss this case in terms of circulation of linguistic authority within the classroom in view of the indeterminacy of a legitimate or generally accepted version of Scots. I conclude by reflecting upon the nature of standard languages, whose status positions them not as just another linguistic variety on a par with others, but as forms of speech whose legitimacy lies not (only) within speakers' identity but within representative institutions, hence their claim to neutrality and inclusiveness, however sub-verted this may be in reality. [nonstandard, education, Scotland, linguistic authority, legitimate speaker]