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Sudanese RVF (rift valley fever) crisis worsens, adding to diagnostic challenge:

This article was originally published in Clinica

Executive Summary

The number of cases of rift valley fever (RVF) in Sudan has increased rapidly since outbreaks were first detected in late October, now posing further diagnostic surveillance challenges. By November 14, 329 cases and 96 deaths had been recorded across the states of Gazeera, West Nile, Sinnar and Khartoum, according to the WHO. There has, however, been no update on the results of confirmatory testing said to rely on PCR (polymerase chain reaction) and ELISA (enzyme-linked immuno-sorbent assay) laboratory support. By November 7, 25 positives had been confirmed using these; three cases in Khartoum were then confirmed as negative, though new "imported" cases are being reported. Laboratory support is being provided primarily by the Cairo, Egypt-based WHO collaborating centre for emerging infectious diseases, NAMRU-3.

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