Vaccine Specific Information
5. Moderna
It is an mRNA-based vaccine, with the efficacy of 94.1%, the recommended age is 18 year and above.- Characteristics:
- Frozen, sterile, and preservative-free.
- Multi-dose suspension.
- One vial contains 10 doses of vaccine after thawing.
- An interval of 28 days between doses is recommended.
- The same product should be used for both doses.
- Once thawed, vaccine is ready to use, do not dilute.
- Before each vaccine withdrawal, swirl the vial gently, do not shake.
- Inspect the vial to make sure that the liquid is white to off-white in color.
- Do not use if any other particles or discoloration are present, in such cases discard the vial.
- Use all vaccine within 6 hours after first puncture, do not combine residual vaccine from multiple vials.
- Given intramuscularly, 0.5 ml, preferred site is deltoid muscle.
- Preparation:
- Thaw each vial before use.
- Thaw vaccine at room temperature at 15 to 25 °C for 1 hour, or
- Thaw vaccine in refrigerator at +2 to +8 °C for 2 hours and 30 minutes.
- Let vial sit at room temperature for 15 minutes before vaccine administration.
- After the first dose has been withdrawn, keep between 2 °C and 25 °C
- Discard any unused vaccine after 6 hours, or at the end of the immunization session, whichever comes first.
- Vaccine Handling:
- Store in the original carton in a freezer at -25 to -15 °C.
- Do not store on dry ice or below -40 °C.
- Frozen unopened vaccine vial in freezer at -25 to -15 °C: from receipt until expiration date.
- Thawed unopened vaccine vial in refrigerator at +2 to +8 °C up to 30 days.
- Thawed unopened vaccine vial in cool storage up to room temperature from 8 °C to 25 °C up to 12 hours.
- Thawed punctured vial at 2 to 25 °C up to 6 hours after the first dose has been withdrawn.
- When thawed at 2 to 8 °C, keep at room temperature (up to 25 °C) for 15 minutes before use.
- When thawed at room temperature (up to +25 °C) for 1 hour, vaccine can be used immediately.
- The vaccine has no VVM, monitor the temperature at least twice per day.
- Adverse events following immunization:
- Observed events are mostly mild to moderate and short lived.
- Less frequent and severe in older (≥65 years) than in younger adults (18–64 years).
- Generally, more frequent after the second dose compared to the first across all age groups.
- Currently there have been increased reports of cases of inflammation of the heart called myocarditis and pericarditis.
- Very common AEFIs: Headache, nausea, vomiting, myalgia and arthralgia.
- Contraindications:
- A history of anaphylaxis to any component of the vaccine is a contraindication to vaccination.
- mRNA-1273 vaccine should not be administered to individuals with a history of anaphylaxis to polyethylene glycol (PEG).
- If anaphylaxis occurs after the first dose, a second dose of mRNA-1273 vaccine or of mRNA-BNT162b2 (Pfizer) should not be administered.