After seeing VVM in discard stage much prior to expiry date both in the store and at the service point, our team thought of developing a job-aid for display in the vaccination clinic for IEC, educating nursing / medical students, interns, post graduates, beneficiaries, care takers while delivering vaccination services. We have taken the pictures of available vaccines in India. If any other vaccine has VVM in India, it may please be incorporated.
"It is a sticker with a central square containing a heat sensitive chemical and a fixed reference color ring for matching. On exposing to heat outside the critically set temperature of 2 to 80C, square irreversibly & gradually turns darker; merging with the outer ring indirectly indicates discard point matching with loss of potency of the vaccine. Based on heat sensitivity of the vaccines, 4 types of VVMs are innovated, placed on flip of the cap for BCG, MR, JE, RVV multi dose and on the label of HepB, OPV, Rotavac single dose, Pentavac, IPV, DPT, TT, Td.
Beneficiaries have right to information; service providers can show the vaccine with useable VVM to the care takers to gain their confidence for better community participation."
Happy reading and suggestions from the viewers
Holla n Team