Quick Answer: Why Should Refrigerated Vaccines Be Stored In The Middle Of The Refrigerator?

How often should Vaccine Fridge be checked?

A vaccine storage self-audit should be undertaken by each clinic/practice at least every 12 months.

Self-audits should be carried out more frequently at facilities that experience cold chain problems (see Appendix 2: Vaccine storage self-audit)..

How long does the norovirus vaccine last?

We do not know for sure, but clinical trials have shown that 2 doses of the vaccine protect for several years.

How long can vaccines be kept out of the fridge?

Before use, the vaccine may be taken out of the refrigerator once for a maximum period of 12 hours at a temperature not above 25°C. If the vaccine has not been used after this 12 hour period, it should be discarded.

Why must vaccines be stored in their original packaging?

Vaccines should always be kept within their original packaging. This protects the vaccines from light exposure and potential damage as well as maintaining a consistent temperature.

What happens if vaccines get too warm?

Inactivated vaccines can be damaged by exposure to temperature fluctuations (e.g., extreme heat or freezing temperatures). Potency can be adversely affected if vaccines are left out too long or exposed to multiple temperature excursions (out-of-range temperatures) that can have a cumulative negative effect.

Which vaccine should not be frozen?

Good temperature control during the storage and transport of vaccines is critical to ensure their potency and safety. Liquid formulations of aluminium-based vaccines against diphtheria, pertussis, tetanus, hepatitis B and Haemophilus influenzae type b, alone or in combination (adsorbed vaccines), should not be frozen.

Who is responsible for correct storage of vaccines?

It is the responsibility of the person transporting and administering vaccines to assure themselves that the vaccine has been stored between 2-8°C prior to administration. This includes staff administering vaccines to patients outside of the practice, for example in their own home/care home setting.

What happens if vaccines freeze?

Accidental freezing of vaccines is a growing threat and a real risk for national immunization programs when the potency of many vaccines can be compromised if these are exposed to sub-zero temperatures in the cold chain.

What vaccine adjuvant is destroyed by freezing?

Freezing damages the freeze-sensitive aluminum adjuvanted vaccines, through separation of lattice between aluminum adjuvant and antigen, leading to formation of aluminum aggregates, and loss of potency.

Which vaccine is most heat sensitive?

Polio vaccine is the most sensitive to heat, while tetanus toxoid is the least sensitive. Vaccines do not change their appearance when potency is lost.

How do you store vaccines in the fridge?

Box 6.3 Guidelines for loading a vaccine refrigeratorFreeze and store ice-packs in the freezer compartment.Store all the vaccines and diluents in the refrigerator compartment.If there is not enough space, diluents can be stored at room temperature.More items…

How do you ensure vaccine potency?

Once lost, vaccine potency cannot be regained. To maintain quality, vaccines must be protected from temperature extremes. Vaccine quality is maintained using a cold chain that meets specific temperature requirements. Figure 2.2 shows recommended vaccine storage temperatures at each level of the cold chain.

Which of these vaccines are to be stored in the refrigerator and must never be frozen?

Providers should safeguard the following vaccines from light: MMR, MMRV, HPV, MCV4, some Hib vaccines, rotavirus, and varicella. All vaccines are to be stored in the refrigerator and should never be frozen. The exceptions are varicella, MMR, and MMRV.

What type of storage unit is not allowed for vaccines?

Small, single-door combined units should never be used for any vaccine storage. The freezer compartment is incapable of maintaining temperatures appropriate for varicella and zoster vaccine storage.

What is the proper way to store vaccines?

Store vaccines in their original packaging with lids closed in separate containers until ready for administration to protect them from light and provide additional thermal stability/protection. Never store loose vials or manufacturer-filled syringes outside of their packaging.

How do I dispose of expired vaccines?

Preservative-free live attenuated vaccines. Used vials should go into the sharps container. If they are expired or recalled, and remain in their original packaging, they may be sent for incineration with your medical waste disposal company. Preservative-free non-live attenuated vaccines.

How can freezing temperatures cause damage to vaccines?

Effectiveness cannot be guaranteed for vaccines unless they have been stored at the correct temperature. Freezing may cause deterioration of the vaccine and lead to hairline cracks in the ampoule, vial or pre-filled syringe which could potentially allow the contents to become contaminated.

Do immunizations expire?

Many of the vaccines we received as children to create immunities to infectious diseases last a lifetime, but not all of them. For example, tetanus and diphtheria vaccines need to be updated with a new vaccine and then with booster shots every 10 years to maintain immunity.