An OPV l shows this symbol on it. What does it indicate?
The pictures below show the interpretation of vaccine l monitor on the OPV vaccine l: - If color of inside square lighter than outside circle - We can use the vaccine - It is heat sensitive label that indicates cumulative heat exposure over time.
The vaccine has reached its expiry date
The vaccine has not been stored properly
The vaccine l is empty
Use the vaccine if expiry date not reached
Storage of vaccines