Tag: Lab Solutions

Rapid Testing and COVID-19: Why Are We Being So Sensitive?

As all of us absorb some of the more troubling aspects of the recent government announcements, we might not be able to avoid a sense of déjà vu. Just like at the end of March, the government is making decisions very quickly that will have a sizable effect the British public. Even more so, the government is pursuing the same line of response that they pursued back in March, leading some to question how far we have really come in our understanding of how to deal with the global COVID-19 pandemic.

Over the last few weeks, however, there have been a number of breakthroughs in the scientific community. These revelations concern the sensitivity of rapid testing, a topic that has been hotly debated in the months since lockdown began. For many, the fact that rapid tests were unable to detect antibodies and viral material below a certain threshold was a fatal flaw, further confirming the predominant use of PCR testing which can detect below this threshold.  

The problem lies in the fact that PCR tests – like those available on the NHS – take at least 48 hours to return a result. Given that the government advises those with symptoms to stay at home, this might mean that the patient misses two days of work at the least, which, as infections rise again, could threaten the financial stability of those already hit hard by the pandemic. Similarly, those interested in travelling might have to postpone or even cancel their plans if they experience symptoms at an inopportune time. Clearly, there is an incentive here for Britons to simply take their chances, to keep functioning in ignorance by not applying for a test or to apply for a test but make no adjustments to their behaviour while they wait for the results. In both cases, the delay inherent in PCR testing poses a problem for mitigating infection rates.

But, since rapid tests are not as sensitive as PCR tests, we have no other option but to continue with this line of response, right?

Well, Harvard immunologist Dr. Michael Mina has a strange yet simple answer (which he lays out clearly and concisely in a recent New York Times article): what if rapid tests are just insensitive enough to miss non-contagious or non-immune individuals who nevertheless have some tiny amount of viral material or antibodies? Put another way, what if a positive result from a rapid test gives us all the information that actually we care about: are we infectious/immune or not? 

Dr. Mina would answer in the affirmative. He does not dispute that rapid tests are less sensitive but still holds that they are more useful that PCR tests, since we are not interested in detecting any and all amounts of viral material or antibodies but only those amounts which make a patient contagious or presently immune. So, why are we being so sensitive?  Rapid testing offers the British public the power to make informed decisions at the pace of their lives. PCR testing interrupts their lives to give them information that they don’t need.

If you are interested in purchasing a rapid test, take a look at our online shop and our eBay page.

An SME’s guide to mitigating infection in the workplace

As an SME, we’ve been eager to find information on managing the risks to our employees’ health. Luckily, there are a number of resources available to small businesses who have already re-opened or are set to reopen in the coming weeks. 

Some of the resources we found most useful can be found on the Department of Business, Energy and Industrial Strategy and Federation of Small Businesses’ websites, including downloadable risk-management checklists, accessible legal guidance and up-to-date reporting on government policy. 

Much of the guidance focusses on changes to work-flow or organisation. For example, maintaining social distancing is an essential requirement for any business operating in the near-future, so you might consider bright floor-markers which guide your employees through their procedures whilst ensuring they are two metres apart. Similarly, the cleaning of surfaces will have to occur more frequently, prompting suggestions to reduce working hours in order to maintain this necessarily high standard of cleanliness. 

In addition to these sorts of changes, improvements in personal hygiene practices while at work will also be required. Instituting protocols such as frequent hand-washing (especially in workplaces which will be serving customers in person), the tying up of long hair and, where possible, a strict separation of work materials between employees, i.e. distributing digital copies of documents instead of sharing physical ones, attempting not to share pens, keyboards, mugs, chairs, etc. A determining factor in the efficacy of these measures appears to be generalising the use of PPE within your workplace. 

One of the most important aspects of new workplace practice is the protocol for determining and reacting to the infection of an employee. Yet, this is a discussion missing from many of the available guides and checklists.

At Lab Solutions, we had an idea. If small businesses had some convenient means to detect infection, they might be able to respond quickly enough to prevent further contamination. That’s why we’re offering Return2Work, a COVID-19 response kit which includes surgical gloves, masks, an external thermometer and a quick blood-test. 

Alongside all the other preventative measures that have been outlined so far, Return2Work’s external thermometer in particular might be a helpful addition to your new health and safety procedures. For example, by monitoring the temperatures of employees as they enter work at the beginning of the day and leave at the end, you can stay abreast of any stark increases. These measurements will then indicate whether someone needs to use Return2Work’s quick blood-test, which will confirm whether the temperature increase is a result of COVID-19. 

Staying aware in this way gives you the freedom to be versatile in your health and safety procedures, tightening or loosening your protocols depending on the results of tests. This versatility is possible because Return2Work gives you both greater power to prevent and respond to infection.

If you feel that Return2Work might be useful for your business or would like further information, visit our website.

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