Mathematical Modeling of Malaria and Typhoid Co-infection: Exploring Vector and Non-Vector Transmission DynamicsQueeneth Ojoma Ahman, Mary Bassey Okofu, Chioma Lydia Ejikeme, Emmanuel Olorunfemi Senewo and Benedict Celestine AgbataMath. Model. Nat. Phenom., 21 (2026) 12DOI: https://doi.org/10.1051/mmnp/2026007