PAHO | Bigg Rec

Bibliographic Info

GuidelineWHO guidelines for malaria, 31 March 2022.

Year of Publication2022

Issuing InstitutionWHO

See guideline details• Guideline fulltext

Recommendation

Status

Maintained

Recommended in favor

Conditional

Certainty of evidence

Moderate

Pyrethroid-PBO nets instead of pyrethroid-only long-lasting insecticidal nets (LLINs) can be deployed for the prevention and control of malaria in children and adults in areas with ongoing malaria transmission where the principal malaria vector(s) exhibit pyrethroid resistance.

Notes and Remarks

1.WHO recommends IRS with a product that has been prequalified by WHO for deployment in most malaria-endemic locations. DDT, which has not been prequalified, may be used for IRS if no equally effective and efficient alternative is available, and if it is used in line with the Stockholm Convention on Persistent Organic Pollutants. IRS is considered an appropriate intervention where:

the majority of the vector population feeds and rests inside houses;
the vectors are susceptible to the insecticide that is being deployed;
people mainly sleep indoors at night;
the malaria transmission pattern is such that the population can be protected by one or two rounds of IRS per year;
the majority of structures are suitable for spraying; and
structures are not scattered over a wide area, resulting in high transportation and other logistical costs.