Polio vaccine poliomyelitis per million doses given. This compares with 5,000 cases per million who are paralysed following a polio infection. Both are generally safe to give during pregnancy and in those who have HIV/AIDS but are otherwise well. The first polio vaccine was the inactivated polio vaccine. It was developed by Jonas Salk and came into use in 1955. The oral polio vaccine was developed by Albert Sabin and came into commercial use in 1961. They are on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system. The wholesale cost in
A Little Frog Is looking for His Father A Little Frog Is looking for His Father A Little Frog Is looking for His Father () is The 1964 Soviet Russian Stop-motion Animation Film by Roman Kachanov. This Film produced by Soyuzmultfilm studio. The Little Frog looking for, but can not find a dad, who can protect him and play with him. He meets a various animals and asks them to become his dad. All these animals are larger than The Little Frog. An animals do not want to become the frog's dad. But suddenly The Little Frog sees in the grass the crying little grasshopper, who also has