Sensitization with anti-inflammatory BmAFI of Brugia malayi allows L3 development in the hostile peritoneal cavity of Mastomys coucha

► Facilitated survival and development of L3 to adult stage in hostile host environment. ► Upregulated TGF-β & IL-10 release, IgG1 & IgG2b, and CTLA-4 & GATA-3 mRNA expression. ► Downregulated cell proliferative response, IgE, IL-13, IFN-γ and NO responses.