B: Cell Culture
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چکیده
-The utilization of this technique in virus isolation allowed the production of the first man-made vaccine for polioviruses in 1955, which resulted in the control of poliomyelitis. Poliovirus used to spread in epidemics causing tens of thousands of paralytic illnesses among children and sometimes death. Poliomyelitis still takes place in certain developing countries and some few developed ones, but it has been proved under control in most of the world. And we are about to eradicate poliovirus. The first polio vaccine was heat (or formalin) inactivated, then a live attenuated (weakened) vaccine was produced early in the 1960’s, and it was used with the inactivated vaccine, they are still in use together (each has its own indications.)
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