During the last decade, vaccination needles were felt from the Amazon to the Himalayas, and by 1990, WHO reported, 80 percent of the world’s infants had been inoculated against six killer diseases.
ओ. समाचार - पत्र एसेन्शल ड्रग्स मॉनिटर (अंग्रेज़ी) कहता है, अभी - भी “ओ.