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.

Read Blog

Nutritional Deficiencies in Indian Kids: Recognizing, Preventing & Overcoming “Hidden Hunger”

Every parent wants their child to grow up healthy — tall, strong, smart, and full of energy. But in India, many kids suffer from what is known as “hidden hunger.” It means that even though they are eating, their diet lacks essential nutrients. These nutritional deficiencies can affect growth, learning, immunity, and long-term health. In this blog, we’ll explore the major nutritional deficiencies in Indian kids, what causes them, how to detect them, and what parents can do. Let’s dive into nutritional deficiencies in Indian kids.

What Are the Most Common Nutritional Deficiencies?

Based on recent research and national surveys, the following are among the most widespread deficiencies in Indian children:

Iron Deficiency / Anaemia
A large percentage of Indian kids (especially under-5s) have low hemoglobin and low iron stores. Anaemia can cause tiredness, slow cognitive development, and lowered immunity. Lippincott Journals+2PMC+2
Vitamin A Deficiency
Vitamin A is essential for good vision, immunity, and healthy cells. Many children under 5 show sub-clinical deficiency; some show clinical signs like night blindness. Lippincott Journals+1
Iodine Deficiency
Iodine is critical for thyroid hormone production, which affects brain development. Lack of iodine can lead to goitre, delayed mental development, and poor school performance. Lippincott Journals+2thyrocare.com+2
Vitamin D Deficiency
Even though India is sunny, many children have low vitamin D — due to indoor living, limited sun exposure, skin coverage, or dietary gaps. This impacts bone health, growth, and risks rickets. PMC+1
Protein-Energy Malnutrition (PEM)
In poorer or marginalized communities, children may not get enough protein or calories. This leads to underweight, wasting, stunting, and weakened immunity. Lippincott Journals+2HDFC ERGO+2
Other Micronutrients (Vitamin B12, folate, zinc etc.)
Deficiencies in B12 & folate can affect cell division, blood production, nerve function; zinc deficiency weakens immunity & slows growth. PMC+2nanhedil.com+2

Why Do These Deficiencies Happen?

Understanding the causes helps in prevention:

Dietary Factors
Many diets are heavy in cereals or starches but low in diversity. Meals may lack fruits, vegetables, animal-source foods (meat, eggs, fish) or fortified products.
Bioavailability of Nutrients
Even when foods contain nutrients, they may not be absorbed well. For example, plant-based iron is less readily absorbed, phytates in grains and legumes can reduce absorption.
Socioeconomic Constraints
Poverty, food insecurity, access issues, lack of awareness, and sometimes traditional/cultural food beliefs limit access to nutrient-rich foods.
Living Conditions and Health
Frequent infections, parasitic infestations, poor hygiene, etc., can increase nutrient loss or demand. Also sunlight exposure (important for vitamin D) is inadequate in many cases.
Gaps in Implementation of Prevention Programs
Though India has multiple programs (fortification, supplement distribution, ICDS, National Nutrition Mission etc.), challenges remain in reach, compliance, quality, and behavioural change.

Effects of Nutritional Deficiencies

These deficiencies have short-term and long-term effects:

Growth stunting (children don’t reach their full height potential)
Wasting (low weight for height), underweight
Impaired cognitive development & learning difficulties
Weak immune system ? more infections
Delayed motor skills, poor school performance
Bone deformities (rickets, weak bones)
Poor quality of life; in severe cases, increased mortality

How to Detect & Diagnose Early

Taking action early helps avoid permanent harm. Key strategies include:

Regular growth monitoring: Checking weight, height, BMI for age
Look for signs: Pale skin or lips, tiredness, delayed milestones, frequent illness, bone pain or deformities (knees bowing, wrist/ankle enlargement)
Lab tests:
- Haemoglobin & complete blood count
- Serum ferritin for iron stores
- Serum levels for vitamin A (retinol)
- 25-OH vitamin D test
- Serum B12, folate
- Urinary iodine excretion or salt iodine test
- Protein / albumin levels

Using broad vitamin profiles (like those from Thyrocare) can help screen for multiple deficiencies in one go.

Foods, Diet & Prevention: What Parents / Caregivers Can Do

Here are practical steps parents can take:

Diversify diet: Include pulses, legumes, eggs, dairy, meat (if non-vegetarian), fish; plenty of green leafy vegetables & fruits.
Fortified foods: Use iodised salt; choose cereals / milk products fortified with vitamins & iron.
Sunlight exposure: Encourage outdoor activities; even short daily sun exposure (face, arms) helps vitamin D.
Supplementation when needed: Under doctor guidance, provide vitamin A doses, iron/folic acid, vitamin D etc., especially in high-risk children.
Hygiene & health care: Prevent worm infections, diarrhoea etc. which can drain nutrients. Ensure vaccinations.
Education & awareness: Teach families importance of nutrition, balanced meals, what local foods can provide what nutrients.

What Parents Should Ask Healthcare Providers

Ask whether your child needs screening for deficiencies (e.g., iron, vitamin A, D, B12).
If lab tests are suggested, check whether it’s comprehensive or narrow, cost, and follow-up.
Seek help for dietary planning, perhaps from nutritionists or public health bodies.
Learn about local government/NGO programs—free or subsidized supplementation or fortified food programs.

When to Seek Medical Help

If your child has:

Persistent anaemia symptoms (very pale, lethargic)
Growth issues (falling off growth charts)
Bone deformities or pain
Severe or recurrent infections
Unusual signs like night blindness, goitre

Then get a medical evaluation. Early intervention can make a big difference.

Conclusion & Call to Action

Nutritional deficiencies in Indian kids are common—but many are preventable or treatable. By recognizing risks, ensuring good diet, doing appropriate lab tests, and using supplements or fortified foods when needed, children can grow healthier, smarter, and stronger.

If you’re concerned that your child may have one or more of these deficiencies, talk to a trusted pediatrician or nutritionist, and consider getting a comprehensive vitamin & nutrition profile done (for example through Thyrocare or SecondMedic) to know exactly where improvements are needed. Don’t wait—every child deserves a strong foundation.

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.