WHO moves against malaria with two fortified nets | The Guardian Nigeria News - Nigeria and World News ⬇️
In a statement, yesterday, the global agency observed that since 2005, over two billion ITNs have been distributed globally to prevent malaria. All of these nets were treated with only one insecticide – pyrethroids.
Leader of Vector Control and Insecticide Resistance Unit within the WHO Global Malaria Programme, Dr. Jan Kolaczinski, noted: “These new types of nets were designed to have a greater impact against pyrethroid-resistant mosquitoes. By including two active ingredients in an ITN, the likelihood of mosquitoes being resistant to both is greatly reduced.”
WHO is issuing a strong recommendation for deployment of pyrethroid-chlorfenapyr ITNs versus pyrethroid-only nets to prevent malaria in adults and children in areas, where mosquitoes have become resistant to pyrethroids. The conditionality is based on judgment of the WHO Guidelines Review Group that the balance of desirable and undesirable effects probably favours pyrethroid-chlorfenapyr nets over pyrethroid-PBO nets. The recommendation is based on evidence drawn from only one trial in Africa.
The organisation went on: “In 2007, WHO adopted GRADE as the method for assessing quality of a body of evidence and for determining the direction and strength of the resulting recommendations. GRADE categorises the quality of evidence as high, moderate, low or very low. GRADE assessments are determined through consideration of several factors, including risk of bias, inconsistency, indirectness, imprecision and publication bias.
Over the last two decades, ITNs have contributed significantly to progress seen in reducing malaria cases worldwide.
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