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Published on: Oct 28, 2020
2 minute read
By: Dr Rajan ( Medical Second Opinion Cell)

COVID: A Reminder To Stay Safe

COVID: A reminder to stay safe

As we approach the second wave of COVID, we need to remain vigilant with our actions to prevent the spread of the virus. We are continuously reminded about wearing a mask in public, maintaining socially distant, and not engaging in risky behavior such as large gatherings. But today we will focus on other forms of transmission. COVID is primarily transmitted by airborne droplets, but spreading the infection through infected surfaces is still feasible. Here we will look at three articles that investigate this mode of transmission.

SARS-COV-2 Survives for 28 days on surfaces

This study by Australian scientists has found that SARS-CoV-2 can survive on surfaces for up to 28 days. The team investigated using the same amounts of virus found on infected individuals, interacting with surfaces such as cotton, paper, stainless steel, glass, and vinyl. Such materials were chosen as they represent commonly touched objects such as mobile phones, ATMs, supermarket checkout regions, items that may not be cleaned regularly enough. Previous research showed the virus could be detected in aerosols for up to three hours, and on plastic and stainless steel surfaces for up to three days.

This study found the virus may survive as long as a week on most surfaces, with enough potency to re-infect. Even after two weeks, there were still plenty of detectable viruses. On other surfaces such as banknotes, the virus could survive as long as a month. The survival of the virus is also potentiated by colder temperatures. The virus is far less likely to survive at 30C than at 6 C, a worrying finding for countries currently approaching winter.

Survival of SARS-CoV 2 on the human skin

We know our skin is host to millions of different bacteria and viruses, but the conditions created by the body alongside the degree of microbial competition actually makes it quite a hostile environment for pathogenic microbes. Hirose et al looked to investigate how well the SARS-CoV-2 virus survives on human skin, using a model. They found that SARS-CoV-2 and the influenza A virus were destroyed more quickly on the skin than other surfaces such as steel, glass, and plastic. However, COVID lasted over 4x longer on skin compared to Influenza A (9 hours vs 1.8 hours).

More importantly, ethanol compounds were found to inactivate SARS-CoV-2 within 15 seconds on human skin. This highlights the importance of regular hand washing, even if with alcohol gel. Taking this in mind, it is useful to keep small bottles of alcohol gel on a person when traveling in public and using it regularly. After all, if you are touching door handles and other items that hundreds of other people may have touched before you, potentially with poor hygiene, it is safer to regularly disinfect.

Low risk of COVID transmission by fomites in real life conditions

Having taken these studies into account, it is quite difficult to quantifiably measure transmission from surface to a person. Knowledge of this transmissibility is quite important, especially to those working in a hospital environment. A review by Mondelli et al published in the prestigious journal The Lancet (Infectious Disease) describes two sequential studies to looking at the possibility of contamination of surfaces in an infectious disease ward of a major Italian hospital, and also whether risk of transmission was higher in emergency rooms and sub-intensive care wards.

These studies found there were very few surfaces in the hospital through which positive swabs could be taken, suggesting contamination was low. Of course the hospitals were running standard cleaning procedures, with regular wipedowns of commonly toughed objects. This again highlights the importance of maintaining hygiene, and how adequate cleanliness can significantly reduce the risk of infection.

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Virtual Cooking Class with Dietitian: A New Era of Healthy Eating in India

Healthy eating has become a top priority for individuals across India. With rising lifestyle diseases such as diabetes, hypertension, obesity and PCOS, food decisions now play a critical role in preventive healthcare. However, most people struggle with questions like what to cook, how to modify recipes, and how to balance nutrition with traditional Indian meals.

Virtual cooking classes with dietitians are transforming how Indians learn about food. They combine practical kitchen skills with scientific nutrition knowledge-something traditional cooking tutorials cannot offer. SecondMedic integrates expert dietitians, AI-driven nutrition analysis and preventive health frameworks to support individuals in building lifelong healthy eating habits.

This blog explores how virtual cooking classes work, why they matter and how they support long-term health.

Why India Needs Dietitian-Led Cooking Classes

Rising Lifestyle Diseases

The ICMR Nutrition and Metabolic Health Study reports alarming trends:

Over 100 million diabetic individuals
High prevalence of fatty liver
Vitamin deficiencies in large sections of the population
Increasing PCOS, thyroid disorders and obesity

Many of these conditions are strongly influenced by diet.

Lack of Nutrition Awareness

NFHS-5 highlights low dietary diversity among Indian households. People often overconsume oil, sugar and refined grains without realising the long-term impact.

Busy Lifestyles

Urban professionals struggle to plan meals due to:

Time constraints
Lack of structured nutrition knowledge
Dependence on takeaways and packaged food

Virtual cooking sessions solve these problems by offering guided, practical learning directly from home.

What Happens in a Virtual Cooking Class?

A SecondMedic virtual cooking class includes:

1. Live Demonstrations

Dietitians prepare recipes step-by-step while explaining:

Nutrient functions
Health benefits
Cooking techniques
Smart portion strategies

2. Ingredient Education

Participants learn about:

Low-GI alternatives
High-fibre grains
Clean protein sources
Anti-inflammatory spices
Healthy fats

3. Meal Planning Guidance

Classes often include weekly planning tips to simplify daily decisions.

4. Nutrient Breakdown

AI-based tools analyse the recipe’s:

Sugar load
Sodium balance
Protein density
Vitamin & mineral profile

5. Condition-Specific Variations

Recipes can be adapted for:

Diabetes
PCOS
Thyroid health
Heart health
Weight loss

This ensures suitability across lifestyles.

Benefits of Virtual Cooking Classes

1. Practical, Hands-On Learning

Participants cook alongside the dietitian, making learning interactive and easy to remember.

2. Prevention-Focused

Unlike regular cooking tutorials, these sessions emphasise preventive eating patterns recommended by WHO and NITI Aayog.

3. Customisable for Families

Healthy recipes become household-friendly, improving community nutrition.

4. Convenient and Accessible

Join from anywhere without travel or scheduling challenges.

5. Increases Long-Term Adherence

When people understand why a recipe is healthy, they adopt it more consistently.

Example Recipe Taught in Class

Vegetable Khichdi (Diabetes-Friendly Version):

Moong dal for high protein
Mixed vegetables for fibre
Minimal ghee
Brown rice/millet for lower GI
Turmeric + cumin for anti-inflammatory benefit

SecondMedic’s AI engine evaluates glycaemic impact and micronutrient density.

Integrating Virtual Cooking With Preventive Care

SecondMedic combines cooking classes with:

Teleconsultations
Diet assessments
AI nutrition scores
Weight and glucose monitoring
Lifestyle coaching

This creates a unified ecosystem for long-term behaviour change.

Conclusion

Virtual cooking classes with dietitians empower individuals to transform their daily meals into preventive healthcare tools. By teaching practical skills, nutrition fundamentals and personalised recipe adjustments, these classes make healthy eating accessible, enjoyable and sustainable.

SecondMedic is redefining preventive nutrition by blending expert guidance with digital interactivity and AI insights-helping people cook better, eat smarter and live healthier.

References

• ICMR Nutrition & Metabolic Health Study - Dietary Impact on Chronic Diseases
• National Family Health Survey (NFHS-5), Ministry of Health & Family Welfare
• NITI Aayog - Preventive Healthcare & Nutrition Strategy for India
• WHO Healthy Eating & Non-Communicable Disease Guidelines
• Lancet Public Health - Effectiveness of Lifestyle Interventions
• Statista India Digital Health & Online Learning Trends
• EY-FICCI Digital Nutrition & Virtual Wellness Report

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