Table 1 Cost components
Cost component | Formula |
|---|---|
Swab | Number of swabs used per dose of vaccine × swab price per piece |
Syringe | Number of syringes per dose of vaccine × price of one syringe × syringes wastage factor |
Needle | Number of needles per dose of vaccine × price of one needle × needles wastage factor |
Safety box | (Syringe volume × no. of syringes per dose of vaccine) + (needle volume × no. of needles per dose of vaccine) + (vaccine vial volume × no. of vials per dose of vaccine) × (price of empty safety box)/actual safety box volume (mL) (2/3 of safety box gross volume) |
Hazardous waste disposal | (Empty syringe weight × no. of syringes disposed per dose of vaccine) + needle weight × no. of needles per dose of vaccine) + (empty vaccine vial weight × no. of empty vials per dose of vaccine)/1000 × hazardous waste disposal price per 1000 g |
Vaccine wastage | Purchase price of vaccine per dose × vaccine wastage factor |
Cold chain: refrigerator | Vaccine package volume per dose (mL) × (refrigerator electricity expenditure per day × electricity price per kWh/refrigerator vaccine storage capacity (mL)) |
Cold chain: cold box | (Refrigerator or freezer electricity expenditure kWh × electricity price per kWh/freezer gross volume (mL)) × (ice pack total volume per cold box × vaccine volume per dose/cold box volume (mL)) |
Administration time | Monthly specific nurse salary (basic salary)/working hours per month/3600 × time (s) to administer one dose of vaccine |
Transportation | Cost of transportation caregivers have to pay to and from the primary healthcare center per visit |
Loss of productivity | Caregiver’s monthly salary/26 × time absent from work due to vaccination (days) |