The conditionality of this recommendation is largely driven by the current higher unit cost of pyrethroid-PBO ITNs compared
to pyrethroid-only LLINs and therefore the uncertainty of their cost-effectiveness. Furthermore, as PBO is less wash-resistant
than pyrethroids, its bioavailability declines ...faster over the three-year estimated life of an ITN; therefore, the added impact of
pyrethroid-PBO ITNs over that of pyrethroid-only LLINs may decline over time. The evidence comes from two sites in
eastern Africa with pyrethroid resistance and not from other geographies where transmission levels and vector characteristics
may vary. PBO acts by inhibiting certain metabolic enzymes, primarily oxidases, and so are likely to provide greater protection
than pyrethroid-only LLINs where mosquitoes display mono-oxygenase-based insecticide resistance mechanisms.
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The revised guidelines contain recommendations for specific administrative, environmental controls and respiratory protection, following the assessment made by an external group of experts convened as members of the Guideline Development Group. Moreover, these guidelines focus on interventions speci...fic to preventing transmission of Mycobacterium tuberculosis bridging with the core components of infection prevention and control programmes at the national and acute health care facility level
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Module 8
Site Planning
July 2017
Module 8: Site planning. This module is for people involved in organizing PrEP services at specific sites. It outlines the steps to be taken in planning a PrEP service and gives suggestions for personnel, infrastructure and commodities that could be considered... when implementing PrEP.
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A Guide For Multicentre Trials in High-Burden Countries
Practical Guideline for collaborative interventions
DHS Analytical Studies No. 51
Child Health, Family Planning, Geographic Information, HIV, Malaria, Maternal Health
Learning sheet no. 4
Accessed March, 2025
The WHO operational handbook on tuberculosis: tuberculosis preventive treatment is the companion, implementation guide to the 2020 WHO guidelines on TB preventive treatment.[1] Just as these guidelines are the first to be released under the rubric of the WHO consolidated TB guidelines, this handbook... will be the first in a modular series of practical guides meant for the implementers of various aspects of the programmatic management TB.
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