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Published on: Apr 20, 2020
3 minute read
By: Dr Rajan Choudhary

Is Herd Immunity A Valid Strategy For COVID 19?

Yesterday we explained you what Herd Immunity means and how it works, today we will take the discussion further to determine whether it is effective and can be recommended in the current context.

COVID-19 currently does not have a cure or a vaccine. Lockdown is the only strategy that appears to be working. Could implementing policies that encourages herd immunity be used to accelerate immunity in the population without the need for a vaccine?

INFECTIVITY

For the strategy to work we need to know a few things about the virus. How infective is it? In one of our earliest blogs we discussed infectivity at length and determined that the R0 (infectivity) may be between 2 and 3. This means each person with the virus can infect around 2-3 people at a time. Whilst this is not as high as Mumps (10-12) it is much higher than the common flu. The higher the R0 the more people that need to be immunised before herd immunity is achieved. For COVID it is estimated that 70% of the population need to be infected.

This is based off our current testing. Due to shortages in testing kits, only testing those that have a high likelihood of being infected and poorly organised testing infrastructure in some countries, we are likely underestimating. The number of people infected may be much higher as we are missing those that are asymptomatic but still have the disease and are still passing the disease on.

MORTALITY

Secondly, we need to know the mortality from COVID-19. Early estimates of mortality were as high as 10%, as we had little data on how many people were truly infected, but as the number of infected cases rose, and testing amongst the infected and symptomatic population rose, a more accurate mortality has been found to be around 1%. There is a risk we may still be underestimating the true mortality, as some cities have noted a spike in cardiac deaths, and some evidence supports possible cardiac damage due to COVID. But from the data we have, we know its mortality is lower than MERS (34%) and SARS (10%) but more than influenza (0.1%).

estimates of the COVID-19 case fatality rate

Whilst we have some data on who is likely to suffer from severe COVID symptoms (elderly, immunocompromised, people with heart or lung problems) we still cannot accurately determine who will get severe COVID in the “low risk” population. Simply because someone is young and healthy does not mean they will not die from COVID.

LENGTH OF IMMUNITY

Third we need to know how long this immunity will last. Similar coronaviruses responsible for the common cold usually create immunity that lasts for a few months, which is why we often get the cold repeatedly. A virus is also very prone to mutations that can change the structure and functions of its proteins, proteins responsible for tagging, latching on to and entering cells. If the structure of these proteins changes enough, then our antibodies will not be able to bind on, and new types of antibodies will have to be made with a slightly different structure. This effectively means our bodies have to start from step 1 again to create immunity, and we have to make new vaccines. This mutation rate is why we have to make new vaccines every season for the flu.

LONG TERM COMPLICATIONS

Finally, we need to know if there are any long-term implications from a viral infection. Again, this is something we do not know yet, as the virus has only been around for a few months. There may be implications for the cardiovascular system, long term breathing problems or more. And even if the complication rate appears relatively low (say, 1%), if millions of people are allowed to get infected, by definitions thousands or tens of thousands of people will have these complications, complications that can lead to issues later in life or an early death.

CONCLUSION

So, is herd immunity a viable strategy for COVID? Without a safe vaccine the general consensus appears to be no.

We don’t know how infective the virus really is or how many people it has infected

A 1% death rate is still very high. This means for every 100 people to be infected; one will die. This would mean hundreds of thousands of people dead in a country with a population over 10 million. It is unacceptably high.

If the death rate is 1%, then hospitalisation rate is likely higher. Almost all countries do not have capacity to have 1% of the population in hospital. Overwhelming the healthcare system will lead to poorer care, and worse care for those who do not have COVID. Leading to more people coming to serious harm or dying as a result of poor healthcare, not because of COVID.

We don’t know the long-term effects of COVID. By purposefully infecting people instead of waiting for a vaccine we may be causing unnecessary damage to a person’s health that only becomes apparent later in life. But this is speculation as we do not currently know if COVID has long term effects,

We don’t know if all of the risks above will amount to anything. The immunity may not last long enough, leading to another spike in infections and mortality.

Mass vaccination appears to be the safest strategy. And though human clinical trials have started on a number of vaccines, we are still months away from deployment. Until then we should not come out of lockdown prematurely, not until we have received an unbiased assessment from public health officials that states it is safe.

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Kindness Week – Recognize Employees Going the Extra Mile

In today’s fast-paced corporate world, deadlines, targets and performance metrics often dominate workplace conversations. However, one powerful factor that consistently drives employee satisfaction and productivity is kindness.

Kindness Week is a meaningful initiative designed to celebrate employees who go beyond their defined roles, support their colleagues and contribute positively to workplace culture. Recognizing those who consistently go the extra mile not only boosts morale but also strengthens organizational values.

Why Kindness Matters in the Workplace

Kindness in professional settings includes:

Offering help without being asked
Supporting team members during stressful periods
Maintaining respectful communication
Appreciating others’ contributions
Showing empathy during challenges

These small actions significantly influence employee wellbeing and workplace harmony.

Research in organizational psychology indicates that workplaces with higher levels of appreciation and positive reinforcement experience:

Better employee engagement
Lower stress levels
Higher productivity
Improved retention rates

The Purpose of Kindness Week

Kindness Week serves multiple objectives:

1. Encourage Positive Behavior

By highlighting positive actions, organizations reinforce desirable behaviors.

2. Promote Appreciation

Employees feel valued when their efforts are acknowledged publicly.

3. Strengthen Team Bonds

Recognition fosters collaboration and trust.

4. Improve Workplace Morale

Celebrating contributions creates a supportive environment.

Benefits of Recognizing Employees Who Go the Extra Mile

Boosted Motivation

When employees know their efforts are noticed, they are more motivated to maintain high performance.

Increased Engagement

Recognition creates emotional connection with the organization.

Better Mental Wellbeing

Feeling appreciated reduces stress and burnout.

Enhanced Organizational Reputation

A positive work culture attracts talent and strengthens employer branding.

How to Celebrate Kindness Week

1. Employee Appreciation Awards

Create categories such as:

Kindness Champion
Team Support Star
Helping Hand Award
Positive Attitude Leader

Keep criteria transparent and inclusive.

2. Gratitude Wall

Encourage employees to post thank-you notes recognizing colleagues’ contributions.

This creates visible appreciation within the organization.

3. Leadership Acknowledgment

Managers and senior leaders can personally recognize employees during team meetings.

Direct appreciation from leadership increases impact.

4. Team Lunch or Wellness Event

Organize:

Welcome lunches
Healthy snack days
Mindfulness sessions
Team-building activities

Combining kindness with wellness initiatives reinforces healthy workplace culture.

5. Random Acts of Kindness Challenge

Encourage employees to perform small acts such as:

Mentoring a junior colleague
Helping with workload
Writing appreciation emails
Sharing learning resources

Recognize participation at week’s end.

Kindness and Employee Retention

Studies consistently show that employees who feel recognized are more likely to remain loyal to their organizations.

Recognition contributes to:

Reduced turnover
Improved job satisfaction
Stronger commitment
Positive organizational citizenship behavior

Kindness Week may seem simple, but its long-term cultural impact can be significant.

Promoting Inclusivity During Kindness Week

Ensure recognition initiatives:

Avoid favoritism
Include all departments
Value non-managerial roles equally
Recognize behind-the-scenes contributions

Inclusivity strengthens fairness and trust.

Measuring the Impact

Organizations can assess the success of Kindness Week by tracking:

Employee feedback surveys
Participation rates
Team engagement metrics
Retention trends

Continuous appreciation initiatives beyond one week create sustainable results.

Building a Culture Beyond One Week

Kindness should not be limited to a single event. Companies can maintain momentum by:

Monthly recognition programs
Peer-to-peer appreciation platforms
Wellness check-ins
Leadership mentoring initiatives

Embedding appreciation into daily operations ensures lasting cultural transformation.

The Indian Corporate Context

In India’s rapidly growing corporate landscape, workplace stress and competition are increasing. Initiatives like Kindness Week support mental wellbeing, collaboration and emotional resilience.

Organizations prioritizing empathy and recognition often witness stronger teamwork and healthier work environments.

Conclusion

Kindness Week is more than a celebration — it is a strategic initiative to recognize employees who go the extra mile and foster a culture of appreciation. By encouraging empathy, gratitude and recognition, organizations create an environment where employees feel valued and motivated.

Simple acts of appreciation can lead to stronger teams, improved morale and long-term success. Recognizing kindness today builds a more collaborative and positive workplace for tomorrow.

References

Society for Human Resource Management – Employee Recognition Studies
Indian Journal of Occupational Health – Workplace Wellbeing Research
Harvard Business Review – Impact of Appreciation on Productivity
World Health Organization – Healthy Workplace Framework
National Institute of Mental Health – Workplace Mental Health Insights

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