Posts by Centennial Rotary Club
We celebrate today the 100th anniversary of Dr. Jonas Salks
We celebrate today the 100th anniversary of Dr. Jonas Salks birthday, who discovered and developed the 1st inactivated polio vaccine and refused to pa...
We celebrate today the 100th anniversary of Dr. Jonas Salks birthday, who discovered and developed the 1st inactivated polio vaccine and refused to pa...
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