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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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Importance of Regular Health Checkups: Early Detection Saves Lives

In today’s fast-paced lifestyle, many individuals prioritise work and family responsibilities while neglecting their own health. However, understanding the importance of regular health checkups is critical for preventing serious medical conditions. Many diseases develop silently without noticeable symptoms, making routine screening essential for early diagnosis and effective treatment.

According to the Indian Council of Medical Research (ICMR), non-communicable diseases such as diabetes, hypertension and cardiovascular conditions are rising across India. Early detection through preventive checkups significantly reduces complications and mortality.

What Are Regular Health Checkups?

Regular health checkups involve:

routine blood tests
blood pressure monitoring
cholesterol screening
organ function tests
lifestyle risk assessments

These assessments help identify abnormalities before they progress into severe conditions.

Why Preventive Healthcare Matters

Preventive healthcare focuses on:

identifying risk factors
detecting disease early
preventing complications

The World Health Organization states that preventive care reduces long-term healthcare burden and improves life expectancy.

Early Detection of Chronic Diseases

Diabetes

India has over 100 million people living with diabetes, according to ICMR data. Many individuals are unaware until complications arise.

Early screening detects:

elevated blood sugar
insulin resistance

Hypertension

NFHS-5 reports that nearly one in four adults in India has hypertension.

Regular monitoring prevents:

stroke
heart attack
kidney damage

Heart Disease

Cholesterol screening identifies risk before symptoms appear.

Timely lifestyle modifications reduce cardiovascular events.

Cancer Screening and Survival Rates

Screenings such as:

mammograms
Pap smears
colon cancer screening

significantly improve survival when disease is detected early.

Monitoring Organ Function

Regular checkups assess:

liver health
kidney function
thyroid levels

Silent organ dysfunction can be detected early.

Benefits of Regular Health Checkups

Reduced Healthcare Costs

Treating advanced disease is more expensive than preventive care.

Improved Quality of Life

Early treatment reduces long-term complications.

Peace of Mind

Knowing health parameters are normal reduces anxiety.

Better Lifestyle Decisions

Screening results motivate healthier habits.

Who Should Get Regular Health Checkups?

adults above 30 years
individuals with family history of chronic disease
smokers
overweight individuals
sedentary professionals

High-risk groups may require more frequent testing.

Frequency of Health Screenings

General recommendation:

Annual checkup for adults
Biannual or quarterly monitoring for high-risk individuals

Doctors personalise schedules based on medical history.

Corporate Health Checkups

Many organisations conduct:

workplace screening camps
employee wellness programs

These initiatives improve workforce productivity and reduce absenteeism.

Preventive Health in India

NITI Aayog highlights preventive healthcare as essential for reducing national disease burden.

Increasing awareness about routine checkups is critical.

Common Tests in Annual Health Packages

Complete blood count
Lipid profile
Fasting blood sugar
HbA1c
Liver function test
Kidney function test
Thyroid profile
Vitamin levels

These tests provide comprehensive health insight.

Addressing Common Misconceptions

Many people avoid checkups because:

they feel healthy
they fear results
they lack time

However, absence of symptoms does not mean absence of disease.

Lifestyle Diseases and Urbanisation

Urban lifestyles contribute to:

sedentary behaviour
poor diet
stress

Regular monitoring counters these risks.

Digital Health and Screening Accessibility

Online booking platforms and home sample collection make preventive care more accessible and convenient.

Technology supports proactive health management.

Building a Culture of Preventive Health

Encouraging:

annual screenings
family health awareness
workplace initiatives

creates healthier communities.

Conclusion

Understanding the importance of regular health checkups is essential for preventing chronic disease and improving life expectancy. Early detection of diabetes, hypertension, heart disease and other conditions allows timely treatment and reduces complications. Preventive healthcare is not an expense but an investment in long-term wellbeing. Scheduling routine screenings today can protect health and save lives tomorrow.

References

Indian Council of Medical Research (ICMR) – Non-Communicable Disease Reports
National Family Health Survey (NFHS-5) – Adult Health Data
World Health Organization (WHO) – Preventive Healthcare Guidelines
NITI Aayog – National Health and Preventive Strategy Reports
Lancet – Early Detection and Disease Prevention Studies

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