• Published on: Apr 20, 2020
  • 6 minute read
  • By: Dr Rajan Choudhary

COVID-19 Frequently Asked Questions !

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FREQUENTLY ASKED QUESTIONS

What is COVID-19?

COVID-19 (COrona VIrus Disease – 2019) is a new viral disease caused by the novel Coronavirus. It was first discovered in December 2019 in the city of Wuhan, China, and has now spread to every country across the world.

What is Coronavirus?

Coronaviruses are a group of viruses that are known to cause a number of different respiratory (lung) diseases in humans and animals. They are responsible for the common cold, but can also cause SARS (Sudden Onset Respiratory Syndrome), MERS (Middle Eastern Respiratory Syndrome) and the most recent COVID-19.

The virus called SARS-CoV-2 causes the disease COVID-19. In the news you may

What are the symptoms of COVID-19?

COVID-19 is a respiratory disease, and the symptoms are similar to the flu or common cold. The most common symptoms are fever, dry cough, feeling tired and shortness of breath. There are many other symptoms that have been found in COVID-19 patients that are less common. These include aches and pains, stuffy nose or runny nose, productive cough or diarrhoea.

The majority of people who are infected with coronavirus will experience very mild symptoms or no symptoms at all. Only a small number of people will have serious symptoms requiring hospitalisation. Older people, and those with certain medical conditions (such as diabetes, heart or lung disease, taking certain medications) are at greater risk of serious symptoms.

How does COVID-19 spread?

COVID-19 is spread from person to person, attached to small droplets in the air.  When an infected person coughs or sneezes, droplets containing the virus exit the lung and spread in the air. This can be breathed in by nearby people, entering their lungs. Here the virus enters the person’s cells and begins to multiply, causing damage in the process.

These droplets can also land on surfaces around the infected person, such as clothes, door handles and more. If a person touches these surfaces with their hands they can pick up the coronavirus. Touching their face, eyes, nose or mouth can then lead to infection.

To prevent this you need to

  • Stay at least 2m away from other people
  • Wash your hands regularly
  • Don’t touch your face
  • If you need to cough and sneeze, do so into a tissue or the crook of your arm. Wash your hands afterwards

Many people will not experience COVID-19 symptoms. But they can still spread the infection to others by coughing and sneezing openly, and not washing their hands. They can spread the infection to vulnerable people who can fall seriously ill or even die from COVID. This is why it is so important to follow public health guidelines.

Can I catch COVID-19 from pets or other animals?

Coronaviruses are a group of diseases that can spread in animals as well as humans. Right now there is very limited evidence on whether animals can infect humans, or humans animals. You may have read some extraordinary stories of people infecting their pets at home. But these cases are rare worldwide. For now we would recommend avoiding contact with wild animals or animals at markets. There is no evidence that suggests your pets will give you COVID-19.

Does coronavirus survive on surfaces?

Evidence suggests that coronavirus can survive on surfaces for at least a few days. This is dependent on the surface type (metal, cardboard, fabric), temperature and humidity of the environment. To be safe, you should regularly wash your hands if in public, with soap and water or alcohol based hand gel. If you think a surface may be infected or someone may have coughed on it, clean it with disinfectant.

How can I protect myself?

It is important to protect yourself, even if you think you won’t get the disease, or if you think you won’t get ill. If you catch the virus, even without symptoms, you can still spread it to others, and they may not be able to survive the infection.

To reduce the risk of getting COVID you should follow public health advice.

Stay inside if you can. Don’t leave the house unless its essential. The less time you’re outside, the less likely you are to breathe in the virus or touch infected surfaces. So the chance of getting the virus is less.

Stay 2 metres away from others. When a person coughs or sneeze’s the droplets can spray quite far away and can stay in the air. Keeping your distance will reduce the risk of breathing in the infected droplets and infecting yourself.

Wash your hands regularly. By doing this you are destroying any virus that you might have picked up accidentally. To destroy the virus you should use soap and water, or alcohol based gels. You do not need to use anything stronger, such as bleach.

Do not touch your eyes, nose or mouth. If you have the virus on your hands you might accidentally infect yourself. The virus can enter your body through your eyes, nose or mouth, and this can lead to an infection.

If you need to cough or sneeze, do this into a tissue or the crook of your elbow. Do not sneeze into your hands. Bin the tissue afterwards, and wash your hands.

If you feel like you may have symptoms of COVID, stay at home. Symptoms include a new onset dry cough, fever above 37.8C, feeling very tired, and usually last 7-14 days. Leaving the house is irresponsible as you can infect other people, and spread the disease. If you are worried about your symptoms you can talk to your doctor, or read about COVID symptoms on our site.

If you are finding it difficult to breathe, breathing very quickly or feeling out of breath even when sitting down, contact your doctor urgently, or visit your Emergency Department.

Do I need a mask?

Many countries are now advising you should wear a mask, and we agree with this. A mask will not prevent you from getting COVID, but it will reduce the risk. A mask can filter out the droplets in the air when you breathe in. It also stops the droplets you make when you cough or sneeze, which can prevent the spread of an infection you might be carrying. You can make a surgical mask out of material you have at home. We will be putting up a guide on how to make a mask on our website.

Do not buy surgical masks or N95 respirators. There is currently a global shortage of these masks, and medical professionals need these masks to protect themselves. These professionals are treating COVID patients on a daily basis, and are at high risk of catching COVID. This risk increases if they do not have the right masks. Many doctors and nurses have already died from COVID because they did not have enough protective equipment. Without these medical professionals hospitals will not be able to treat ill patients.

Should I isolate myself or my family?

We would advise that people remain at home where possible, and only leave the house to buy essential groceries and food, to go to work if you cannot work from home, or to buy food for vulnerable people who cannot leave their house (elderly, those at high risk of dying from COVID).

If you have symptoms of COVID-19 you should self isolate for 7-14 days at home, and not leave the house. If possible you should ask friends or family not in the house to buy any essential food and groceries. If you live with other people they should also stay at home, as it is likely they are infected as well. Only leave the house if you need to go to hospital because your symptoms are severe and you need to see a doctor.

After you have had symptoms of COVID-19, you should still follow this advice. Your symptoms may have been due to other viruses, such as the flu or common cold, and without a confirmed positive swab we can only guess you have had COVID-19. Even with confirmed COVID, you may catch the virus again and spread it, even if you don’t get symptoms again. During this pandemic it is better to be safe than cause harm.

How can COVID-19 be treated?

There is currently no cure for COVID-19. In hospital doctors will offer supportive therapy, by giving fluids, oxygen and medication such as paracetamol for symptom control. If you are struggling to breathe they might use machines such as ventilators to help you breathe.

Antibiotics cannot treat viruses, and they will not help treat COVID-19. In people with severe COVID-19 who are in hospital or on ventilators, a doctor might give antibiotics. This is because people in hospital and on ventilators are at high risk of catching a second bacterial lung infection. If you have mild symptoms, antibiotics can instead cause side effects such as diarrhoea, and cause resistance to the drug.

You may have heard of some medications in the news that can help treat COVID-19. Two such medications include chloroquine and hydroxychloroquine. Clinical trials have shown these drugs to have no effect on treating COVID. In fact they can be dangerous, causing serious heart problems, risk of becoming blind or even death.

There is no vaccine for COVID, but many are in development. We expect these vaccines to stay in development for many more months, and an approved vaccine may be available by next year. 

There are many theories that have been spread on social media. Many of these are dangerous with no evidence to support them. Do not take any treatment or medication unless your doctor recommends it.

I read a new theory about COVID-19 on Facebook/WhatsApp/social media. Is it true?

Most of the theories, stories and treatments spread on social media are false, useless or even dangerous. Do not believe everything you hear on social media. Many of these stories have been made up, without any proof, and promote theories that are too good to be true.

We have gone through many stories that we have found as WhatsApp forwards and shown them to be false. You can find them on our blogs: https://www.secondmedic.com/blogs/ secondmedic blog

If you have read a story that you want to be fact checked, email us at info@secondmedic.com. We will have a look at the story and get back to you with advice. Our analysis will be based on evidence and scientific advice. 

I want to learn more about COVID-19

If you have any more questions about COVID-19 or how COVID-19 might affect you, you can check out our blog on https://www.secondmedic.com/blogs/covid-19-prevention secondmedic covid blog or email us at info@secondmedic.com.

Dr Rajan Choudhary, UK, Chief Product Officer, Second Medic Inc

www.secondmedic.com

Read Blog
How Cold Weather Affects Health: Understanding Winter’s Impact on the Body

How Cold Weather Affects Health: Understanding Winter’s Impact on the Body

Seasonal changes influence human health more than most people realise. Cold weather, in particular, places unique stress on the body and can worsen existing health conditions while increasing susceptibility to new illnesses. Understanding how cold weather affects health is essential for preventing seasonal complications and maintaining wellbeing during winter months.

In India, winter-related health issues vary by region but commonly include respiratory infections, cardiovascular strain and joint discomfort. According to the Indian Council of Medical Research (ICMR) and World Health Organization (WHO), cold exposure is associated with increased morbidity, especially among older adults and people with chronic conditions.

 

Why Cold Weather Impacts the Body

The human body works constantly to maintain core temperature. In cold environments:

  • blood vessels constrict to conserve heat
     

  • energy expenditure increases
     

  • immune responses may weaken
     

  • organs work harder to maintain balance
     

These adaptations, while protective, also create health vulnerabilities.

 

Increased Risk of Infections

Weakened Immune Response

Cold weather can suppress immune function, making it harder for the body to fight infections.

Factors contributing to winter infections include:

  • reduced vitamin D due to less sunlight
     

  • dry air affecting mucosal defenses
     

  • closer indoor contact
     

Common winter infections include colds, flu and respiratory illnesses.

 

Respiratory Health Problems

Cold air irritates the respiratory tract.

This can lead to:

  • worsening asthma symptoms
     

  • bronchitis flare-ups
     

  • increased cough and breathlessness
     

WHO reports higher hospital admissions for respiratory illnesses during colder months.

 

Impact on Heart Health

Cold temperatures affect cardiovascular function.

Blood Vessel Constriction

Cold causes blood vessels to narrow, increasing:

  • blood pressure
     

  • heart workload
     

This raises the risk of:

  • heart attacks
     

  • strokes
     

People with existing heart disease are particularly vulnerable.

 

Joint and Muscle Pain

Cold weather affects musculoskeletal health.

Common complaints include:

  • joint stiffness
     

  • muscle aches
     

  • worsening arthritis pain
     

Lower temperatures reduce joint lubrication and increase sensitivity to pain.

 

Metabolic and Weight Changes

Winter often leads to:

  • reduced physical activity
     

  • increased calorie intake
     

  • metabolic slowdown
     

These changes contribute to weight gain and worsen metabolic conditions such as diabetes.

 

Skin and Hydration Issues

Cold air holds less moisture.

This leads to:

  • dry skin
     

  • cracked lips
     

  • worsening eczema
     

Dehydration is also common as thirst perception reduces in cold weather.

 

Mental Health Effects

Seasonal changes can influence mental wellbeing.

Cold weather is associated with:

  • low mood
     

  • reduced motivation
     

  • seasonal affective symptoms
     

Limited sunlight affects circadian rhythm and serotonin levels.

 

Cold Weather and Older Adults

Elderly individuals face higher risks due to:

  • reduced temperature regulation
     

  • weaker immunity
     

  • existing chronic conditions
     

Winter-related complications are a significant cause of hospitalisation in older populations.

 

Why Chronic Diseases Worsen in Winter

Conditions such as:

  • hypertension
     

  • arthritis
     

  • asthma
     

  • diabetes
     

often worsen due to reduced activity, stress on organs and infection risk.

 

Preventive Strategies for Winter Health

Maintain Body Warmth

Layered clothing and warm environments reduce cold stress.

 

Support Immunity

Adequate nutrition, vitamin intake and sleep strengthen immune defences.

 

Stay Physically Active

Indoor exercises and regular movement prevent stiffness and metabolic decline.

 

Manage Chronic Conditions

Regular monitoring and medication adherence are critical during winter.

 

Hydration and Skin Care

Drinking fluids and using moisturisers prevent dehydration and skin damage.

 

Role of Preventive Healthcare

Preventive healthcare helps:

  • identify seasonal risk factors
     

  • adjust treatment plans
     

  • prevent winter complications
     

NITI Aayog highlights seasonal preparedness as an important public health strategy.

When to Seek Medical Help

Medical attention is necessary if:

  • infections persist or worsen
     

  • chest pain or breathlessness occurs
     

  • joint pain limits mobility
     

  • mental health symptoms interfere with daily life
     

Early care prevents serious outcomes.

 

Long-Term Impact of Ignoring Winter Health Risks

Ignoring cold weather effects may lead to:

  • severe infections
     

  • cardiovascular events
     

  • chronic pain progression
     

  • reduced quality of life
     

Seasonal awareness plays a critical role in long-term health.

 

Conclusion

Understanding how cold weather affects health allows individuals to take timely preventive measures. Winter increases the risk of infections, heart strain, respiratory problems, joint pain and mental health challenges. With proper warmth, nutrition, activity and preventive healthcare, most cold-related health issues are manageable and preventable. Seasonal care is not optional—it is essential for protecting health and wellbeing throughout the colder months.

 

References

  • ICMR – Seasonal Health and Infectious Disease Reports

  • National Family Health Survey (NFHS-5) – Seasonal Morbidity Data

  • NITI Aayog – Preventive Healthcare and Seasonal Preparedness Strategy

  • WHO – Cold Weather and Health Impact Guideline

  •  Lancet – Seasonal Variation in Cardiovascular and Respiratory Diseases

  • Statista – Winter Health Trends and Illness Data

  • Indian Journal of Public Health – Climate and Health Studies

See all

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