TY - GEN AU - MARMION,D E AU - NAYLOR,G R AU - STEWART,I O TI - Second attacks of typhoid fever SN - 0022-1724 PY - 2003///0501 KW - Animals KW - Behavior, Animal KW - Humans KW - Social Behavior KW - Typhoid Fever N1 - Publication Type: Journal Article UR - https://doi.org/10.1017/s0022172400015680 ER -