Gao YuqiHartemink NienkeBijma Piterde Jong Mart C.M.2026-05-052026-610.1016/j.idm.2025.12.003https://pubs.cidrz.org/handle/123456789/12609Age-structured next generation matrix and R0 calculation for Mycobacterium avium subsp. paratuberculosis (MAP)https://doi.org/10.1016/j.idm.2025.12.003