• Published on: Jan 29, 2022
  • 2 minute read
  • By: Second Medic Expert

Understanding Quarantine

  • WhatsApp share link icon
  • copy & share link icon
  • twitter share link icon
  • facebook share link icon

What Is Quarantine?

Quarantine is the segregation of people who are infected or suspected of being infected with a particular disease.

It is also the isolation of patients with communicable diseases to prevent their spread. The purpose of quarantine is to protect the public from exposure to potentially deadly diseases. Quarantine is for people who don’t have symptoms but who might have been exposed to the coronavirus. The idea is to keep you from unknowingly infecting others.

Who Needs to Quarantine?

You probably don't need to quarantine yourself, but if you are close contact with someone who has tested positive for coronavirus or just got back from a country where this deadly virus is spreading then it's best that we keep our distance until things calm down.

The reason for this is twofold. First, it's important to prevent the spread of the virus. Secondly, it's important to give those who are an infected time to recover without exposing others to the virus.

There are also a few other groups of people who may need to consider quarantining themselves, such as healthcare workers and those who work with livestock. Anyone who’s been in close contact with a person who has COVID-19 should self-quarantine, even if you’ve had the virus before.

“Close contact” means you did one or more of these things:

  • Were within 6 feet of the person for at least 15 minutes
  • Cared for the person at home
  • Touched, hugged, or kissed them
  • Shared eating or drinking utensils with them
  • Got droplets on you when they sneezed or coughed

According to the CDC, you’ll need to quarantine:

  • If You’re 18 or older and have completed the primary series of the recommended vaccines. But you have not received a recommended booster shot after you became eligible.
  • If You received the vaccine over 2 months ago but haven’t received the recommended booster shot.
  • If You’re not vaccinated or haven’t yet completed your first full round of vaccines.

You don’t need to quarantine:

  • If You’re 18 or older and have received all recommended vaccine doses, including boosters and additional shots recommended for immunocompromised people.
  • If You’re 5-17 years old and completed the primary series of COVID-19 vaccines.
  • You had COVID-19 within the last 90 days. This should have been confirmed using a viral test.

However, if you were exposed to someone who tested positive, wear a well-fitting mask around others for 10 days after exposure.

How to Quarantine at Home

There are a few simple steps you can take to quarantine at home:

1.Sanitize your environment - Make sure to clean all surfaces and objects in your home that may have meet the disease. You can use a disinfectant or bleach solution to do this.

2.Isolate yourself - You should isolate yourself from other people in your home and avoid contact with anyone who may be infected.

3.Monitor your symptoms - Be on the lookout for any symptoms of the disease and report them immediately to your doctor.

4.Stay hydrated - Make sure to drink plenty of fluids to help keep your body healthy and fight off any potential infections.

How Long Does Quarantine Last?

Stay home for at least 5 days after your last contact with a person who has COVID-19. Wear masks when around others so that you do not pass on the infection to them!

For 10 days after your last close contact with someone with COVID-19, watch for fever (100.4 F or higher), cough, shortness of breath, or other COVID-19 symptoms.

If you develop symptoms, get tested immediately and isolate until you receive your results. If you test positive, follow isolation recommendations below.

If you don't develop symptoms, get tested at least 5 days after your last exposure. Positive tests allow for limited movement in and out of homes but continue wearing protective gear around others until 10 more are complete."

If you test positive for COVID-19, isolation is necessary. The recommended period of time without contact should be at least 5 days from the date that your symptoms began and may also need to extend beyond 10 if they continue after this length time has passed; however, it’s important not make assumptions about how long an individual will remain infected before developing others signs/symptoms because everyone's situation varies!

When you get the new coronavirus, your quarantine lasts five days because that’s how long it takes to know if you have symptoms. If there are no signs of illness after this time period has passed then treatments for virus should be considered over with just one quick visit from our doctors!

Read Blog
Role of Nutrition in Disease Prevention: How Food Choices Shape Long-Term Health

Role of Nutrition in Disease Prevention: How Food Choices Shape Long-Term Health

Disease prevention is no longer limited to vaccinations and medical screenings. Modern healthcare increasingly recognises nutrition as one of the most powerful tools for preventing illness before it begins. The role of nutrition in disease prevention is especially important in India, where lifestyle-related diseases account for a large share of premature illness and mortality.

According to the Indian Council of Medical Research (ICMR) and the National Family Health Survey (NFHS-5), poor dietary patterns contribute significantly to rising cases of diabetes, heart disease, obesity and hypertension. Unlike genetic factors, nutrition is a modifiable risk factor, meaning everyday food choices can actively protect health.

 


Why Nutrition Is Central to Disease Prevention

1. Nutrition regulates metabolic health

Balanced diets help maintain:

  • healthy blood sugar levels
     

  • optimal cholesterol balance
     

  • stable blood pressure
     

Disruption in these systems increases disease risk.

2. Nutrition strengthens immunity

WHO highlights that immune function depends heavily on adequate intake of vitamins, minerals and protein.

3. Nutrition controls inflammation

Chronic low-grade inflammation is linked to most lifestyle diseases. Diets rich in whole foods reduce inflammatory markers.

Major Diseases Influenced by Nutrition

Diabetes and Prediabetes

Excess refined carbohydrates and sugar drive insulin resistance.

Preventive nutrition focuses on:

  • whole grains
     

  • fibre-rich vegetables
     

  • adequate protein
     

  • controlled portion sizes
     

ICMR data shows that dietary modification can delay or prevent type 2 diabetes in high-risk individuals.

Cardiovascular Disease

Heart disease remains a leading cause of death in India.

Nutrition impacts:

  • cholesterol levels
     

  • blood pressure
     

  • arterial inflammation
     

Diets low in trans fats and high in fibre significantly reduce cardiovascular risk, as confirmed by WHO and Lancet studies.

Obesity

Obesity increases the risk of multiple chronic diseases.

Preventive nutrition addresses:

  • calorie density
     

  • food quality
     

  • satiety regulation
     

NFHS-5 reports a steady rise in overweight and obesity across age groups.

Hypertension

High sodium intake and low potassium intake contribute to high blood pressure.

Preventive dietary strategies include:

  • reducing processed foods
     

  • increasing fruits and vegetables
     

  • maintaining mineral balance
     

Certain Cancers

Diet influences cancer risk through:

  • antioxidant intake
     

  • fibre consumption
     

  • reduced exposure to carcinogenic compounds
     

WHO estimates that a significant percentage of cancers are preventable through diet and lifestyle changes.

Key Nutrients That Support Disease Prevention

Fibre

Supports gut health, blood sugar control and cholesterol reduction.

Protein

Essential for muscle health, immune function and metabolic balance.

Healthy Fats

Omega-3 fats reduce inflammation and protect heart health.

Micronutrients

Iron, zinc, vitamin D and B vitamins are essential for metabolic and immune regulation.

NFHS-5 highlights widespread micronutrient deficiencies in India, increasing disease vulnerability.

Role of Gut Health in Prevention

The gut microbiome plays a major role in:

  • immune regulation
     

  • inflammation control
     

  • nutrient absorption
     

Fermented foods and fibre-rich diets support healthy gut bacteria, strengthening disease resistance.

 

Why Preventive Nutrition Works Best Early

Nutrition is most effective when applied:

  • before disease onset
     

  • during pre-disease stages
     

  • alongside regular health screening
     

Once disease progresses, nutrition remains supportive but may not reverse damage fully.

Nutrition vs Medication in Prevention

Medication treats disease; nutrition reduces risk.

WHO and NITI Aayog emphasize that:

  • preventive nutrition reduces disease incidence
     

  • lifestyle modification lowers healthcare burden
     

  • early nutrition changes reduce dependency on long-term medication
     

Both approaches work best when combined appropriately.

Workplace and Community Role in Preventive Nutrition

Structured nutrition programs at workplaces and communities:

  • improve awareness
     

  • support behaviour change
     

  • reduce population-level disease burden
     

Lancet studies show that group-based nutrition interventions improve long-term adherence.

 

Common Myths About Nutrition and Disease Prevention

Myth 1: Supplements replace healthy food

Whole foods provide better long-term protection.

Myth 2: Prevention requires extreme diets

Consistency matters more than restriction.

Myth 3: Nutrition only matters after diagnosis

Early nutrition is most effective before disease develops.

Building a Preventive Nutrition Routine

Effective preventive nutrition includes:

  • regular meals
     

  • diverse food groups
     

  • portion awareness
     

  • minimal processed foods
     

  • hydration
     

Small daily choices compound into long-term health benefits.

Long-Term Impact of Preventive Nutrition

Consistent healthy eating leads to:

  • reduced disease risk
     

  • improved energy and productivity
     

  • better immune resilience
     

  • lower healthcare costs
     

  • improved quality of life
     

NITI Aayog identifies nutrition as a cornerstone of sustainable healthcare systems.

Conclusion

Understanding the role of nutrition in disease prevention empowers individuals to take control of their health long before illness develops. Balanced, consistent nutrition reduces inflammation, supports immunity and protects against chronic diseases that burden India’s healthcare system. Preventive nutrition is not about short-term fixes but about building lifelong habits that support health, resilience and longevity.

 

References

  • ICMR – Nutrition and Lifestyle Disease Prevention Reports
     

  • National Family Health Survey (NFHS-5) – Dietary and Metabolic Health Data
     

  • NITI Aayog – Preventive Healthcare and Nutrition Strategy Reports
     

  • WHO – Diet, Nutrition and Chronic Disease Prevention Guidelines
     

  • Lancet – Nutrition and Disease Risk Reduction Studies
     

  • Statista – Dietary Trends and Health Outcomes India
     

  • EY-FICCI – Preventive Healthcare and Nutrition Economics

See all

Live Doctor consultation
Live Doctor Chat

Download Our App & Get Consultation from anywhere.

App Download
call icon for mobile number calling and whatsapp at secondmedic