An OPV l shows this symbol on it. What does it indicate?: (A) The vaccine has reached its expiry date, (B) The vaccine has not been stored properly, (C) The vaccine l is empty, (D) Use the vaccine if expiry date not reached
Answer is D. 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.