Nucleic acids were extracted from serum samples using the EZ1 Virus Mini Kit v2 and an EZ1 advanced XL Biorobot workstation (Qiagen). Detection of viral genomes was performed using a one-step TaqMan real time RT-PCR procedure and the kit SuperScript III Platinum One-Step Quantitative RT-PCR System with ROX (Life Technologies) for the CHIKV and the dengue virus (DENV), as previously described [21] (link), [22] (link), [23] (link). In addition, plasma samples were tested for the presence of Plasmodium falciparum genomes using a previously reported real time PCR procedure targeting the P. falciparum aquaglyceroporin gene [21] (link), [22] (link), [23] (link) and the Platinum Quantitative PCR SuperMix-UDG (Life Technologies).
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