Gapochko K G, Titova T S, Savel'ev A P, Misnikov O P, Evstigneev V I, Gamleshko Kh P, Popova V D, Samoĭlova L V
Zh Mikrobiol Epidemiol Immunobiol. 1994 Sep-Oct(5):49-53.
The presence of several active foci of infection of different etiology is an indication for complex (combined) immunization against these diseases. The scheme of complex (combined) immunization against plague, cholera and yellow fever has been experimentally substantiated and successfully tested on volunteers.