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Published on: Apr 04, 2020
3 minute read
By: Dr Rajan Choudhary

Developing A Vaccine For COVID-19? Part 1

It is often stated vaccination has made the greatest contribution to global health of any human discovery, other than clean water and sanitation, and their impact on everyday life is immediately evident. We have managed to completely eradicate two major infections from existence (smallpox and rinderpest) , and the WHO are working towards adding polio to that list.

In these cases the numbers speak for themselves. It is estimated that the eradication of smallpox in 1980 has saved 5 million lives per year, adding up to 150 to 200 million by 2018. Common vaccination programmes for polio, measles, mumps, rubella, rabies and hepatitis A have prevented nearly 200 million cases from occurring in the US alone over the past 50 years, and 4.5 billion instances of the diseases worldwide.

We have achieved a 99% immunisation rate against polio, preventing children from suffering crippling paralysis, and only 3 countries remain. Sadly, around 1.4 million children under 5 still die from preventable diseases each year as they do not have access to these life saving vaccines, but charities and public health organisations around the world are working hard to improve access.

So what are vaccines? And how will they help is in the face of the latest pandemic? Here we will go into the challenges behind making vaccines, and why a vaccine against COVID-19 is unlikely to be ready in the next few months, or even this year.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4024226/ contribution of vaccination

https://www.who.int/features/factfiles/polio/en/ polio eradication

https://www.sciencedaily.com/releases/2017/03/170303163208.htm study article

WHAT IS A VACCINE

The human body’s immune system is incredibly smart. It is able to distinguish between infective organisms, such as bacteria, viruses and parasites, from our own body’s cells, target these invaders for destruction and keep our bodies healthy. Even better, the body remembers any previous infections it has had before, recognise these previous infections even quicker and even eradicate the disease before we know we are infected.

Vaccines target the immune system’s memory by presenting them with pieces of these infective diseases. The small amounts do not cause any infective symptoms, but if the person is infected later in life their body will mount a quicker response and prevent them from falling ill. These vaccines can contain broken up parts of the organisms, “dead” organisms or “live” versions that have been severely weakened so they cannot cause any harm.

In summary, medicines treat us when we get an infection. Vaccines make sure we never suffer from an infection in the first place.

https://www.chop.edu/centers-programs/vaccine-education-center/making-vaccines/how-are-vaccines-made Making Vaccines

THE HURDLES WE FACE IN RESEARCH

Making a vaccine is a difficult process, one that can take 3–5 years and cost hundreds of millions of dollars, sometimes billions of dollars. This is because there are many difficult steps to be taken in the process of creating a vaccine that is effective, but more importantly one that is safe.

To start with the troubling organism has to be identified. For COVID-19 it took a few weeks to recognise the virus responsible, and some time more to understand its genetic code and grow the virus in lab conditions. We then have to understand the virus, how it infects, how it causes symptoms, and how it has mutated compared to the coronaviruses responsible for SARS and MERS.

After this, we have to isolate parts of the virus our immune system will recognise. This is usually the outside coat of the virus. The DNA responsible for making these parts need to be found in the virus’ genetic code, and put inside other “skeleton” viruses. This will force the dummy virus to look like coronavirus, without the ability to infect and kill someone.

These dummy viruses can be injected into animals to see if it causes an immune reaction, whether the immune system recognises it as the coronavirus responsible for COVID-19, and whether it will protect the animal from the real COVID-19. Up to now the research has likely cost a few million dollars. The next step is when the price inflates up to billions.

If the vaccine appears safe in animals, it can be tested in humans. This can be dangerous at first, since we don’t know whether a vaccine that works in an animal will work in a human. And we don’t know if there will be any side effects to the vaccine. Human testing has to be very thorough, very careful, and safe for use. If you give too much of the virus it might make the person sick, too little and it wont immunise the person. These clinical trials can take years, and if the vaccine fails at this point its back to the drawing board, to try another step.

https://www.theatlantic.com/politics/archive/2014/10/how-to-make-an-ebola-vaccine-5-simplified-steps/454443/ ebola vaccine

Now we have a basic understanding of what vaccines are and why it takes so long to make a vaccine. In the next part we will look at why viral vaccines can cause even more problems, and how far we have come with the COVID-19 vaccine,

Dr Rajan Choudhary, London UK

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20% Health Time | A Smarter Way to Build Workplace Wellbeing

Modern workplaces are increasingly recognising that employee health is not separate from performance—it is foundational to it. Long work hours, constant digital connectivity and rising stress levels have led to burnout, lifestyle diseases and declining engagement across industries. In this context, the concept of 20% Health Time has emerged as a forward-thinking approach to workplace wellness.

20% Health Time allows employees to dedicate a portion of their paid working hours specifically to activities that support physical, mental and preventive health. Rather than treating wellness as an after-hours responsibility, this model integrates health directly into the work culture.

What Is 20% Health Time?

20% Health Time is a structured workplace initiative where employees are encouraged or allowed to spend approximately one-fifth of their working time on health-related activities.

These activities may include:

physical exercise or movement breaks
mental wellness practices
health education sessions
preventive health screenings
stress management and recovery

The core idea is simple: healthier employees perform better and sustain productivity longer.

Why Traditional Wellness Programs Fall Short

Many organisations offer wellness benefits such as gym memberships or annual checkups. While valuable, these programs often fail because:

employees lack time to use them
wellness is seen as optional
participation remains low
benefits are disconnected from daily work

20% Health Time addresses these gaps by embedding wellness into regular work hours.

Why Health Time Matters in Today’s Workplace

Rising Lifestyle Disease Burden

Public health data shows increasing rates of:

diabetes
hypertension
obesity
mental health disorders

These conditions affect working-age adults and directly impact productivity and healthcare costs.

Burnout and Mental Fatigue

Constant pressure and lack of recovery time lead to:

chronic stress
disengagement
absenteeism
high attrition

Health Time creates space for recovery and resilience.

Sedentary Work Culture

Desk-bound work contributes to:

musculoskeletal problems
cardiovascular risk
low energy levels

Dedicated health time encourages movement and prevention.

How 20% Health Time Benefits Employees

Improved Physical Health

Regular movement and preventive care reduce long-term health risks.

Better Mental Wellbeing

Time for mindfulness, rest and stress management improves emotional balance.

Higher Energy and Focus

Healthy routines improve concentration and reduce fatigue.

Empowerment and Autonomy

Employees feel trusted to manage their wellbeing, increasing engagement.

How Employers Benefit from 20% Health Time

Increased Productivity

Healthy employees work more efficiently and make fewer errors.

Reduced Absenteeism

Preventive care lowers sick days and health-related disruptions.

Lower Healthcare Costs

Early detection and healthier habits reduce long-term medical expenses.

Stronger Employer Brand

Wellbeing-focused policies attract and retain top talent.

Sustainable Performance

Health Time supports long-term performance rather than short-term output.

Activities That Fit into 20% Health Time

Organisations can tailor activities based on workforce needs:

guided fitness or yoga sessions
walking or movement breaks
mental health workshops
preventive health checkups
nutrition education
stress and sleep management programs

Flexibility ensures inclusivity across roles and work models.

Evidence Supporting Health Time Initiatives

Workplace health research consistently shows that:

preventive health improves productivity
employee wellbeing programs reduce burnout
time invested in health yields measurable returns

According to WHO and workplace wellness studies, integrated health initiatives deliver better outcomes than standalone benefits.

Addressing Common Concerns

“Will this reduce working hours?”

No. Health Time improves efficiency, offsetting time spent through better performance.

“Is it suitable for high-pressure roles?”

Yes. High-stress roles benefit the most from structured recovery time.

“How do we measure impact?”

Metrics may include:

reduced absenteeism
improved engagement scores
lower healthcare claims
better retention

Implementing 20% Health Time Effectively

Successful implementation requires:

leadership support
clear guidelines
flexible scheduling
inclusive activity options
regular feedback

Health Time works best when seen as a cultural shift, not a perk.

Long-Term Impact on Organisational Health

Over time, organisations adopting Health Time observe:

healthier workforce
improved morale
reduced burnout
stronger team cohesion
sustainable growth

These benefits compound year after year.

Conclusion

20% Health Time represents a progressive shift in how organisations view employee wellbeing. By dedicating work time to health, companies acknowledge that productivity and wellbeing are deeply connected. Rather than reacting to burnout and illness, Health Time promotes prevention, balance and resilience. In a future where talent, performance and sustainability matter more than ever, integrating health into the workday is not a luxury—it is a strategic necessity.

References

World Health Organization (WHO) – Workplace Health Promotion Guidelines
Indian Council of Medical Research (ICMR) – Lifestyle Disease and Work Health Reports
NITI Aayog – Preventive Healthcare and Workforce Wellbeing Strateg
Lancet – Workplace Wellness and Productivity Studies
Harvard Business Review – Employee Wellbeing and Performance Research
Statista – Corporate Wellness Trends and ROI Data

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