- Humoral immune response to tetanus-diphtheria vaccine given during extended use of chloroquine or primaquine malaria chemoprophylaxis. Fryauff, D.J., Cryz, S.J., Widjaja, H., Mouzin, E., Church, L.W., Sutamihardja, M.A., Richards, A.L., Subianto, B., Hoffman, S.L. J. Infect. Dis. (1998)