SP is the recommended intermittent preventive treatment (IPTp) against malaria infection for pregnant women and SP + Amodiaquine is the combination used for seasonal malaria chemoprophylaxis (SMC).  Because these two preventive treatments are now being widely deployed, there is renewed interest in the level of resistance to these antimalarials.  This SP resistance surveyor displays the prevalence of molecular markers associated with resistance to sulphadoxine pyrimethamine (SP) found in Plasmodium falciparum malaria parasite by year and location.

The data used to populate the surveyor are freely available, and the complete file can be downloaded for further use.

The tool provides clear and standardised visualisation of the evidence to inform key international, regional and national monitoring strategies to protect pregnant women in malaria endemic regions against further spread or emergence of resistance to SP.

SP resistance surveyor 

  • Displays the distribution of resistance markers found associated with reduced efficacy of SP from across 22 countries
  • Summarises data from 18,541 samples and 35 different publications
  • Uses flexible default settings that can be altered easily by the user
  • Allows the user to explore the  data by molecular marker type, by country  and by time period, using filter options on the left hand bar
  • Discover other visualisations of the same data that allow the user to explore the temporal trends and compare two different sites of interest in more detail are available below the map
  • Download the full data set.

Explore a previous version of the SP resistance surveyor displaying resistance markers for sulphadoxine-pyrimethamine.

For more information about this tool or contributing molecular data to the WWARN Data Centre, email Dr Georgina Humphreys at molecular [at] wwarn [dot] org