Country Results

The Zanzibar Malaria Behavior Survey was fielded in June through July 2021 in conjunction with the Tanzania Malaria Behavior Survey. Zanzibar has a low transmission context that is moving towards the elimination of malaria, and a low transmission MBS was used to reflect the context and intervention implementation in Zanzibar. Survey results were analyzed in coordination with the National Malaria Control Program and will be released in 2023. The survey was carried out by the Breakthrough ACTION project in collaboration with the National Malaria Control Program, the U.S. President’s Malaria Initiative, and several other local organizations.

Study Zones

Survey Regions and Respondents

Individual respondents

Key behaviors at a glance


of respondents who had fever in the two weeks prior to the survey sought prompt and appropriate care on the same or next day of fever onset

  • Favorable perceptions: 88% of respondents reported favorable perceptions of malaria testing and treatment by facility-based health workers.

  • Social norms: Only 52% of respondents reported that most people in their communities seek prompt care within 48 hours of developing a fever.


of nets found within households were used every night of the week

  • Self-efficacy: Respondents were 6 times more likely to consistently use a net if they believed they had the ability for this behavior.

  • Attitudes: Respondents with favorable attitudes toward net use were 3.4 times more likely to consistently use nets.


of respondents reported willingness to permit their dwellings to be sprayed with residual insecticide

  • Response Efficacy: 91% of respondents perceived indoor residual spraying as effective.

  • Attitudes: 75% of respondents had favorable attitudes toward indoor residual spraying.


Results Brief


2022 Results Brief [Coming soon]

Survey Report


2022 Survey Report



2021 Questionnaires

MBS datasets can be downloaded from the USAID Development Data Library (DDL). External links are added to this site as datasets are made available.