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A new malaria test offers high specificity from a small form factor, and researchers develop an imaging tool to examine mosquito feeding behaviour.

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Transcript:

The current tools for diagnosing malaria have limitations; rapid diagnostic tests lack sensitivity and specificity whilst PCR-based molecular tests require time and labour. A new CRISPR-based diagnostic approach, using the ‘SHERLOCK’ protocol, seeks to bridge the gap between the two, offering accurate results from a small form factor. It delivers results in 60 minutes and can differentiate between multiple strains of P. falciparum and P. ovale malaria with 100% specificity. This new generation of tests has particular application to low-resource settings where they will be useful to detect malaria prevalence among asymptomatic patients.

By deploying high-resolution imaging, researchers are now one step closer to understanding the complex feeding behaviour of mosquitoes. The so-called ‘biteOscope’ is a device that attracts mosquitoes to a host mimic with artificial blood. The host is transparent to allow for the recording of activity, with a particular focus on movement and posture.

Sources:

Ultrasensitive CRISPR-Based Diagnostic for Field-Applicable Detection of Plasmodium Species in Symptomatic and Asymptomatic Malaria

BiteOscope, an Open Platform to Study Mosquito Biting Behavior


Image Credits: Experiment Test [Needpix]

Scientific Advisor: Elena Gómez-Díaz, Institute of Parasitology and Biomedicine, Spain

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