Cold Chain The ‘cold chain’ is the system of transporting and storing vaccines at recommended temperature from the point of manufacture to the point of use. Manufacturer Distributor Vaccine Depots Provider office Client.
This presentation contains Complete cold chain system, Importance and requirement of cold chain, detail of each equipment of cold chain system.
This presentation contain brief detail of THE SHAKE TEST, Reverse cold chain.
This is fully equipped with knowledge of Field facts of cold chain system.
immunization of children is essential to prevent childhood illness, morbidity and mortality. immunization or vaccination is the way of protecting child from infectious diseases.
This presentation contains Complete cold chain system, Importance and requirement of cold chain, detail of each equipment of cold chain system.
This presentation contain brief detail of THE SHAKE TEST, Reverse cold chain.
This is fully equipped with knowledge of Field facts of cold chain system.
immunization of children is essential to prevent childhood illness, morbidity and mortality. immunization or vaccination is the way of protecting child from infectious diseases.
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2. Cold Chain
The ‘cold chain’ is the system of
transporting and storing vaccines at
recommended temperature from the
point of manufacture to the point of use.
That is, the role of the cold chain is to
maintain the potency of vaccines.
Manufacturer
Distributor
Vaccine
Depots
Provider
office
Client
3.
4. All our distribution centers should have cold storage facility maintaining a steady
temperature of 2°- 8°C and -15° – 25° which is backed up with power generators
(24 X 7).
5.
6. Why is the cold chain important ?
1. Vaccines are:
Biological products
lose potency with time
Process irreversible and
accelerated if proper storage
conditions are not adhered to.
3. Ensuring maximum benefit
from immunisations
Responsibility not to waste
scarce NHS resources
Reduce wastage from errors
2. Assurance in potent
product and vaccine
programmes
Professional responsibility
Confident the vaccines you give
will be effective
Public Health responsibility
Public confidence in
immunisation programmes
4.Compliance with
SPC/Manufacturer
Any vaccine that has not been
stored at a temperature of 2-8ºC as
per its licensing conditions is no
longer a licensed product
7.
8.
9.
10. Cold chain storage equipment
Walk in
cold rooms
Deep
freezers
Ice lined
refrigerators
11. 1.Walk in cold rooms(WIC)
At district & PHC levels
Temp :- -15oc to -25oc
At PHC, used only for the
preparation of ice packs
At regional level
Storage up to 3 months
2.Deep freezers
12. 3.Ice lined refrigerators(ILR)
Both at district and PHC
levels
Temp :- +2oc to +8oc
ILR’s are top opening,
can hold cold air inside
better than front opening
refrigerators
13. Sensitivity to HEAT
BCG
Varicella
MMR
MenC
Hepatitis B
DT and/or aP/IPV/HIB
HepB and combination
DTand/or aP/IPV/HIB
Influenza
MenC
*MMR
*Varicella
*BCG
(*Freeze dried)
MOST
SENSITIVE Sensitivity to COLD
Temperature must be
dial thermometer
LEAST
recorded twice in a day with SENSITIVE
14. Immunisation Department, Centre forInfections
Light Sensitive
Sensitive to strong light, sunlight, ultraviolet,
fluorescents (neon)
BCG
MMR
Varicella
Meningococcal C Conjugate
Most DTaP containing vaccines
Vaccines should
always be stored
in their original
packaging until
point of use to
protect them from
light
15. Vaccine Storage
Use a dedicated vaccine fridge
Safeguard electricity supply
No more than 50% full
Place vaccines in clearly
labelled plastic mesh baskets
Group vaccines by type
(Paediatric, Adult, Adolescent)
Defrost/calibrate fridge regularly
Ensure back up facilities are
available in the event of fridge
failing
X Do not place fridge in
direct sunlight or near heat
source
X Do not store vaccines for
more than 1 month at PHC.
X Do not store vaccines in
fridge doors or in solid
plastic trays/containers
within the fridge
X Keep vaccines away from
fridge walls and cold air
vents
Picture taken fromwww.medisave.co.uk
DO’sDON’T’s
X No food or medical
specimens
17. 1.Cold boxes Used for transport of vaccines
Fully frozen ice packs placed
at the bottom and sides
DPT, TT, DT should not be kept
in direct contact
2.Vaccine
carriers
Used to carry small quantity of
vaccines(16 to 20 vials)
For out of reach sessions
4 icepacks are used
18.
19. 3.Day carriers
Used to carry very small quantities
of vaccines(6 to 8 vials)
For anear by session
2 icepacks areused
For only 2 hours period
20. Use of diluents
Specifically designed to reconstitute
the vaccines with respect to volume,
pH and other chemical properties
Store at +2oc to +8oc in ILR
Only use vaccines suppled and
packaged by manufacturer
21.
22. Vaccine Vial Monitor(VVM)
VVM is a label containing heat sensitive
material that is placed on a vaccine vial
to register heat exposure over time
Vaccine vial
monitor
23. Stage 1
• Inner square
lighter than
outer circle
Stage 2
• Inner square
still lighter than
outer circle
Stage 3
• Color of inner
square matches
the outer circle
Stage 4
• Color of inner
square darker
than outer circle
Combined effects of time and
temperature cause the inner square
to darken gradually and irreversibly
VVM does not directly measure the
vaccine potency but gives info about
the main factor that affects potency
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36. Strengthen routine
immunization to
meet vaccination
coverage targets
and improved
vaccines
research and
development for
the next generation
of vaccines and
technologies
Accelerate control
of vaccine-
preventable
diseases
Objectives of
WHO in
immunization
Introduce new
Active immunization/vaccination
has been named one of the
"Ten Great Public Health
Achievements in the 20th Century"
37. Immunization is the
process whereby a
person is made
immune to an
infectious disease,
typically by the
administration of a
vaccine.
Controlling and eliminating life-threatening infectious diseases
Estimated to avert between 2 and 3 million deaths each year.
One of the most cost-effective health investments
Accessible to even the most hard-to-reach and vulnerable
populations.
Immunization schedule