Call
+918447748545

Published on: Jul 07, 2020
1 minute read
By: Dr Rajan Choudhary

Asymptomatic Carriers Of COVID

Why Asymptomatic carriers of COVID are as dangerous as symptomatic patients

Many countries have now begun enforcing masks for everyone to wear when out in public, in enclosed spaces, or on public transport. There is good evidence to support these measures, but unfortunately, some still show resistance to the idea. Whilst some reasons put forward are non-sensical (masks do not cause any noticeable or measurable decrease in oxygen delivery to the body), other people feel like they shouldn’t wear a mask because they do not have symptoms of COVID. And thus would not spread anything. Here we look at a recent publication in Nature, one of the most esteemed peer-reviewed scientific journals in the world, and what it shows us about the transmission of COVID in a population.

This study by Lavezzo et al looked at the suppression of the SARS-CoV-2 outbreak in the Italian municipality of Vo’. This municipality is 50 kilometers west of Venice with a population of just 3,416 people. It experienced its first casualty of COVID on the 21st of February, after which it underwent lockdown for 14 days. During this time data was collected on the clinical presentation and hospitalization of COVID patients, as well as other citizens through the contact tracing network.

In total 2,812 residents were tested in late February, with another 2,343 tests performed two weeks later at the end of lockdown. Nasal and throat swabs were taken to identify infected individuals. The study found only 2.6% of people were positive for COVID at the start of lockdown, which reduced to 1.2% two weeks later.

Out of this infected population, 42.5% were asymptomatic. They had no symptoms at the time of swab testing nor did they develop symptoms afterwards. When the viral load was measured between symptomatic and asymptomatic patients, there was little difference.

Evidence has pointed to a large asymptomatic population, and previous studies have shown it to be as high as 50% in some cases. Many would assume if a patient has no symptoms then they must have fought the infection before it became an issue, or had a very low viral load and therefore were not likely to spread it. This study shows it is simply not true. Asymptomatic carriers of COVID are likely to contribute to the transmission and spread of COVID amongst the population.

If you are asymptomatic you have as high a viral load as someone who is symptomatic. But there is no way to tell without a swab. You have as much of a potential to spread the infection to the vulnerable. Even in people who became symptomatic the height of transmission was found to be before the patient showed any symptoms.

So what does this mean? If you have COVID you are likely to spread it before you show any symptoms or any symptoms at all. We know masks are effective at significantly reducing the spread of COVID, by catching the water droplets that carry the SARS-CoV-2 Virus. Now that shops and public places are re-opening, the risk of spread is high.

Wear a mask. Stop the spread.

https://www.nature.com/articles/s41586-020-2488-1_reference.pdf suppression of a SARS article

Read Blog

Sleep and Performance: The Silent Driver of Workplace Success

In India’s fast-paced digital work culture, sleep has quietly become one of the most overlooked pillars of productivity. While caffeine, deadlines, and long screen hours dominate the modern office routine, quality sleep remains the true driver of performance, creativity, and emotional balance.

According to NITI Aayog’s 2024 Health & Productivity Report, sleep deprivation affects nearly 68% of Indian professionals, leading to fatigue, anxiety, and reduced focus - a direct hit to workplace performance.

The Science of Sleep and Productivity

Sleep isn’t just rest - it’s restoration.
During sleep, the brain processes memory, repairs cells, balances hormones, and regulates emotional control.
Without enough of it, cognitive efficiency drops by up to 40%, as shown in a Statista 2024 workplace wellness survey.

Employees who get adequate sleep display:

Better problem-solving abilities
Faster reaction times
Improved emotional regulation
Higher motivation and engagement

In contrast, chronic sleep deprivation leads to irritability, errors, poor concentration, and slower learning.

Sleep and Mental Health at Work

Work stress and poor sleep form a vicious cycle.
Prolonged stress raises cortisol levels - which interferes with the body’s ability to fall and stay asleep. In turn, lack of sleep increases anxiety and depression risk.

A FICCI-EY 2024 study found that professionals sleeping less than 6 hours a night reported 25% lower job satisfaction and 31% higher burnout than those sleeping 7–8 hours.

Sleep directly impacts mental health, which in turn affects workplace collaboration, leadership, and creativity.

SecondMedic’s Approach to Sleep Wellness

SecondMedic offers digital solutions that integrate teleconsultations, AI-based sleep tracking, and stress management programs - empowering individuals to build better rest habits.

Key components include:

Sleep Consultations: Online sessions with wellness experts to identify causes of poor sleep (stress, diet, or screen habits).
AI Sleep Tracker: Monitors sleep patterns and provides actionable recommendations.
Mindfulness Sessions: Guided relaxation and breathing techniques to improve sleep quality.
Hormonal & Fatigue Tests: Diagnostic packages to rule out medical causes like thyroid imbalance or sleep apnea.

SecondMedic’s holistic model blends technology and medical expertise to restore the most vital aspect of health - restorative sleep.

Corporate Wellness and Productivity

Forward-thinking organizations are now investing in corporate sleep wellness programs as part of their employee health initiatives.
A Deloitte India 2024 report shows that sleep-related wellness initiatives can increase productivity by 25% and reduce absenteeism.

SecondMedic partners with companies to provide:

Sleep and stress assessments
Online wellness consultations
Customized fatigue and burnout prevention workshops

The result? Healthier employees, fewer sick days, and a happier, more focused workforce.

How to Improve Sleep and Performance

Here are actionable steps professionals can take:

Set a Sleep Routine: Go to bed and wake up at consistent times.
Avoid Screens Before Bed: Blue light disrupts melatonin production.
Limit Caffeine & Alcohol: Both affect sleep quality if consumed late.
Exercise Regularly: Light evening walks promote better sleep.
Use Sleep Tools: Track your rest cycles with digital apps like SecondMedic’s AI sleep tracker.

Consistency, not duration alone, determines sleep quality.

The Link Between Sleep and Leadership

Leaders who prioritize rest make clearer decisions and foster more empathetic workplaces.
A rested mind is a resilient mind - capable of innovation, strategic thinking, and conflict resolution.

In contrast, chronic fatigue impairs judgment and emotional control, two critical traits for leadership success.

India’s Shift Toward Sleep-Aware Work Culture

As the wellness movement grows, Indian organizations are embracing sleep as a strategic asset.
Tech firms, healthcare companies, and startups are partnering with wellness platforms like SecondMedic to integrate sleep-focused employee programs.

This cultural shift reflects a global realization - productivity is not about working longer but resting smarter.

Conclusion

Sleep is not a passive activity - it’s the foundation of high performance.
By prioritizing rest, India’s professionals can unlock sharper focus, better mental health, and sustainable productivity.

With SecondMedic’s sleep and wellness programs, individuals and organizations alike can harness the true potential of healthy sleep - the silent, powerful driver of success.

Book your sleep health consultation today at www.secondmedic.com

References

NITI Aayog – Health & Productivity Report 2024
FICCI-EY – Corporate Wellness in India 2024
Statista – Sleep & Workplace Efficiency Study India 2024
Deloitte India – Employee Wellness Trends 2024
ABDM – Ayushman Bharat Digital Mission (Sleep & Wellness) – https://abdm.gov.in

Request A Callback

+91

By using this website/app, I confirm that I am at least 18 years old and consent to the processing of my personal data in accordance with the Terms of Service, Privacy Policy, and Declaration.