Mass immunizations, at least twice a year, have to be carried out for three years before the virus can be eliminated.
22.
Mass immunizations, at least twice a year, have to be carried out for three years before the polio virus can be eliminated.
23.
Three more countries _ Cameroon, Chad and Ivory Coast _ will join a second round of mass immunizations in November, UNICEF said.
24.
Mostow, a former field tester of vaccines for the Centers for Disease Control and Prevention, suggested using supermarkets to offer mass immunizations.
25.
The Centers for Disease Control and Prevention is asking health departments to put off their mass immunization campaigns until late October or November.
26.
The World Health Organization and U . N . Children's Fund warned that future mass immunizations would suffer without an injection of funding.
27.
In many parts of the world, the disease has been eradicated through mass immunization, particularly of small children, who are the most susceptible.
28.
Han said the figure had been drastically reduced to 699 cases of clinically confirmed cases in 1994, thanks to the mass immunization efforts.
29.
Even if a stable government emerges soon, WHO said poor transportation, difficult communications, poor facilities and human resources problems would impede mass immunization efforts.
30.
Each immunization costs about $ 75, and as a public health measure it is difficult to justify mass immunization for such a rare disease.
