Science, asked by sahanaci, 8 months ago

who discovered oral polio vaccine

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Answered by Cutedoll07

Two different kinds of vaccine are available: An inactivated (killed) polio vaccine (IPV) developed by Dr. Jonas Salk and first used in 1955, and. A live attenuated (weakened) oral polio vaccine (OPV) developed by Dr.

ẞhréé Kríßhñà♥️

Answered by Anonymous

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Two different kinds of vaccine are available: An inactivated (killed) polio vaccine (IPV) developed by Dr. Jonas Salk and first used in 1955, and. A live attenuated (weakened) oral polio vaccine (OPV) developed by Dr.

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who discovered oral polio vaccine ​

Answers

Two different kinds of vaccine are available: An inactivated (killed) polio vaccine (IPV) developed by Dr. Jonas Salk and first used in 1955, and. A live attenuated (weakened) oral polio vaccine (OPV) developed by Dr.

ẞhréé Kríßhñà♥️

who discovered oral polio vaccine