Monitoring the Canine Vaccine Cold Chain in the Field

Monitoring the Canine Vaccine Cold Chain in the Field

Abstract: The World Health Organisation stresses the importance of maintaining the cold chain for temperature sensitive vaccines. Due to the recommendation for rabies vaccines to be stored between 2° and 8° Celsius and the nature of canine mass vaccination projects, cold chain maintenance remains one of the most significant logistical hurdles project managers have to overcome.

Mission Rabies field teams in Picture4Malawi evaluated the use of adhesive temperature monitors as an alternative to thermometers in both storage fridges and field cooler boxes during the duration of a 4 week mass vaccination drive in April/May 2016.

Two different Timestrip® temperature monitors were used to alert the teams to the critical temperature thresholds of 0°C and 30°C.  As freezing rapidly damages vaccines, each vaccine box containing 10 vials of 10ml vaccine was marked with a monitor that indicates the immediate crossing of the lower threshold through colour change. As damage from high temperatures is related to both the temperature achieved and the time of exposure, to test for the upper temperature limit each cooler box was equipped with a monitor that showed the crossing of the upper threshold over time.

Of a total of 22 vaccination teams participating in the study, 7 teams reported an exposure of the vaccines to temperatures above 30°C for more than 4 hours and on 9 occasions teams reported a temperature drop to 0°C or below.

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These findings highlight the importance of monitoring the temperature during field campaigns, both due to proximity to ice packs and exposure to high outside temperatures. The use of Timestrip temperature indicators gives early visual clues and raises awareness among the team. However practicability of the temperature monitoring must be taken into consideration and adhesive monitors need to be improved with regards to their setup to make them a valuable tool in field projects.

This abstract was presented at the 28th Annual Rabies in The Americas Conference on 23 October 2017.

Authors: Frederic Lohr, Reuben Isbitsky, Andy Gibson, Alasdair King

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Timestrip Attending IAFP Annual Meeting in Tampa, Florida

Timestrip Attending IAFP Annual Meeting in Tampa, Florida

Timestrip will be attending the International Association for Food Protection – IAFP – in Tampa, Florida from 9th – 11th July 2017.

We will be demonstrating our 3°C Seafood, 5°C, 8°C & 10°C irreversible ascending temperature indicators at the exhibition. We will be at booth 847, please come and get a sample of our Nonreversible Food Temperature Indicators to test and take away with you. Click here for more information.

Timestrip temperature monitoring labels make tracking temperature breaches across a multitude of cold chain food industry applications a simple, cost-effective process.

In fact, we offer the most cost-effective solution of our type in food standard and food safety monitoring, which is why our technology has already been adopted by a number of innovative businesses. Our precise, efficient, user-friendly temperature indicator labels are helping to ensure effective cold chain management around the world.

 

Each year, the International Association for Food Protection hosts an Annual Meeting, providing attendees with information on current and emerging food safety issues, the latest science, innovative solutions to new and recurring problems, and the opportunity to network with thousands of food safety professionals from around the globe. Held in various locations throughout North America, this meeting has grown over the years to become the leading food safety conference worldwide.

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Timestrip UK Launch Longer Breach Time & Temperature Indicator For The Pharmaceutical Industry

Timestrip UK Launch Longer Breach Time & Temperature Indicator For The Pharmaceutical Industry

Timestrip UK Ltd have expanded their range to include their latest Timestrip PLUS™ 10° threshold indicator with a 7-day run-out/recording window. This specific indicator is meeting the demand within the pharmaceutical industry and the regulations and compliance that come with transportation and storage. With Timestrip’s latest 10° 7 day offering, they are reaching out further within the Pharmaceutical and Healthcare industry and ensuring their high tech but low cost devices are evolving with the relevant advances in the industries.

Timestrip design and manufacture innovative, irreversible time and temperature indicators for a range of industries from Food to Pharmaceutical. Their Timestrip® PLUS range is predominantly used across the Healthcare, Life sciences and Pharmaceutical arena. Currently, the Timestrip PLUS™ range covers temperature thresholds from -20°C up to 38°C and generally display a run-out window of any temperature breach for 8, 12 or 48 hours.

7DayPhotoCombining time & temperature monitoring patented technology, which involves controlled rate lateral diffusion of liquids through the device membrane once activated. If a breach occurs, the ‘smart’ indicators will visually indicate how long a product has been exposed to higher temperatures.

For a free sample of the new 10° 7 day indicator, or to place an order click here

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Restaurants and seafood cold chain monitoring: trust, experience and correct protocols

Maintaining a correct cold chain is essential in managing the supply of seafood products in order to avoid contamination and food poisoning, especially from C Botulism. For restaurants and retailers, who are towards the end of a typical cold chain, ensuring this has occurred prior to delivery is a particular concern. Failure in this area can have dire consequences, both in cost and PR terms, and for consumers, they can be extremely dangerous and in some cases lethal.

tsplus_seafoodIn June for instance, the FDA website published an alert about a Florida-based supplier of tuna products that was obliged to initiate a US-wide product recall due to suspected C Botulism contamination of its product.

The manager of one major London restaurant says that the main ways his establishment monitors the quality of the seafood it orders are visual and olfactory inspection of the product upon receipt and the use of trusted suppliers that have the correct certification. The products are also checked upon receipt with temperature probes.

He says that a contaminated seafood product will “not look right”, that it will look “sweaty” and for fish as opposed to shellfish, that the eyes of fish that have “gone off” will look “dead looking”.

He also says that contaminated fish will have a distinct unpleasant smell and that his rule of thumb is “discard fish that smells fishy”.

He says that the scenario of the refrigerated delivery truck whose engine was switched off for a number of hours prior to delivery needn’t necessarily lead to a fall in the refrigerated ambient temperature within it as long as the truck’s doors haven’t been opened.

He adds that major points of sale of seafood products such as Billingsgate market in south-east London have power points specifically to ensure that the refrigeration units of delivery trucks are kept on, thus ensuring that the seafood products they are carrying are kept at the correct cooled or frozen temperatures.

He does concede though, that for oysters specifically, in his 40 years’ experience as a restaurant professional, statistically all restaurants that offer them will occasionally serve oysters that lead to food poisoning.

Lastly, he says that in his experience restaurants are extremely rigorous in the correct application of good food management principles and most cases of food poisoning from contaminated seafood in fact occur in private residences where there is much less awareness of these principles.

Furthermore, he says that among people who aren’t professionals of the food industry, there is also a poor understanding of food poisoning and in all suspected cases enquiries are always made about what was eaten in the previous 72 hours as invariably the cause of the incident was not what was last consumed.

Across the Channel in France, a similar approach also exists with a specialist Marseille-based seafood restaurant and retailer that has two busy branches and has been operating for over 60 years.

The manager of this business, who deals the most with quality and cold chain monitoring, says for him visual inspection of seafood products upon receipt of new stock is his most useful tool to determine whether an appropriate cold chain has been maintained.

He says fish that is spoiled due to not having been kept at the correct cooled temperature will “not feel right” and “not have the right firmness”. This, he says, occurs even before the product starts to smell bad.

He also knows that fish that is spoiled always have eyes that are not the correct colour, which is another indication that they haven’t been kept at the correct chilled temperature prior to delivery.

Another aspect of how his restaurant ensures the quality of the products they serve is to only use trusted suppliers and not to deal with intermediaries. Because of these strong longstanding relationships, his business benefits from a “no questions asked” returns policy.Timestrip plus food monitoring

He also says experience is also key, pointing to the 60+ years his establishment has been in existence.

However, like his counterpart in the UK, beyond many years’ professional experience and the use of trusted suppliers and mainly visual inspection of seafood products upon receipt, no cold chain monitoring tools are used.

Both also were emphatic about stressing the value of their respective establishment’s reputation and how damaging an outbreak of food poisoning would be. This, they both said, was always one of the main issues at the front of their minds when they managed their seafood products.

However at one of Marseille’s main teaching hospitals, one senior nurse was extremely dubious about how restaurants manage and monitor seafood cold chains. Her many years’ clinical experience was that they often cut corners and few would discard products that might be spoiled, but could not be returned, due to the appropriate cold chain not having been maintained. She also said she thought this extremely worrying situation would occur even if sophisticated temperature indicators were used at all stages of the seafood cold chain.

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