Reply to letters to the Editor Bellavite P. Factors that influenced the historical trends of tetanus and diphtheria. Donzelli A, Duca P. More than 70,000 deaths prevented by vacdnation against three diseases in about 75 years? The estimation seems exagger

Pezzotti, P; Bellino, S; Prestinaci, F; Iacchini, S; Stefanelli, P; Rezza, G

Pezzotti, P (reprint author), Ist Super Sanita, Dept Infect Dis, Viale Regina Elena 299, I-00161 Rome, Italy.

VACCINE, 2018; 36 (37): 5508