Vector alert: Anopheles stephensi invasion and spread

[NOTE: This is not the latest version of this document. See the Vector Alert published in January 2023 via this link]

Vector alert: Anopheles stephensi invasion and spread – Horn of Africa, the Republic of the Sudan and surrounding geographical areas, and Sri Lanka (Information Note)

Anopheles stephensi, a highly competent vector of Plasmodium falciparum and P. vivax, is considered an efficient vector of urban malaria. The World Health Organization (WHO) considers the spread of An. stephensi to be a major potential threat to malaria control and elimination in Africa and southern Asia. This vector alert has been developed to urge WHO Member States and their implementing partners – especially those in and around the Horn of Africa, the Republic of the Sudan and surrounding geographical areas, and in Sri Lanka – to take immediate action.

The original English version of this document has been translated to into French and Arabic.