All You Need to Know about COVID-19

The novel coronavirus (COVID-19) has spread to over 230 countries, resulting in a global death total of over 7 million as of Apr 2025. 

While the advent of more virulent mutations is certainly cause for concern, the best way to deal with the virus is to arm yourself with knowledge about it, and play your part in keeping your family, friends and loved ones safe.

Read on for our guide on the coronavirus, measures you can take to keep yourself safe, and details that professionals have discovered about COVID-19.

Q: What is a Coronavirus?

In general, coronaviruses are a large family of viruses that are common in humans.

They can cause a whole range of illnesses that range in severity from the common cold to serious illnesses such as pneumonia or Severe Acute Respiratory Syndrome (SARS).

COVID-19 is part of this family of viruses, and healthcare professionals all around the world are working day and night to find out what makes it unique.

Q: What symptoms should I look out for?

For people infected with COVID-19, there's a wide range in infection severity, from no symptoms to severe pneumonia.

Commonly reported symptoms in COVID-19 patients include fever, cough, sore throat, and shortness of breath. Other symptoms may include muscle aches, abdominal pain, and loss of smell.

If you are experiencing any of these symptoms, however mildly, you are strongly advised to stay home, monitor your condition, and see a doctor if your condition gets worse.

Singaporean residents can visit their nearest Parkway Shenton clinic for a doctor's consultation. Same-day testing for Influenza A, Influenza B, and COVID-19 is also available at the clinic.

You can also use the Singapore COVID-19 Symptom Checker for suggestions on care options based on symptoms, age, and recent travel and contact history.

Q: I'm worried about catching the virus. How fatal is it?

Although most people with COVID-19 recover, people with chronic diseases are also at higher risk of death if they become ill.

Current information suggests that older people and people of any age who have serious underlying medical conditions might be at higher risk for severe illness from COVID-19.

Q: I'm concerned about my family. Who else is at risk?

Those at increased risk for severe illness from COVID-19 include:

1. People aged 60 years and older.

2. People with chronic lung diseases, including COPD (chronic obstructive pulmonary disease), asthma (moderate-to-severe), interstitial lung disease, cystic fibrosis, and pulmonary hypertension.

3. People of any age with severe obesity (BMI 27.5)

4. People with underlying medical conditions, particularly if not well controlled. Examples include individuals with cerebrovascular disease, diabetes, heart, lung, liver and/or kidney disease.

5. Pregnant women and recently pregnant women (for at least 42 days following end of pregnancy) are more likely to get severely ill from COVID-19 compared with non-pregnant people.

6. People who are immunocompromised*.

* Many conditions can cause a person to be immunocompromised. These include treatments for cancer, patients undergoing bone marrow or organ transplants, autoimmune conditions, immunocompromised states including HIV or AIDS, prolonged use of steroids or other immune-modifying medication and inherited genetic defects.

7. Smokers and substance abusers. 

8. Residents in eldercare facilities.

9. Healthcare workers.

10. People who live with someone medically vulnerable.

• Many conditions can cause a person to be immunocompromised. These include treatments for cancer, patients undergoing bone marrow or organ transplants, autoimmune conditions, immunocompromised states including HIV or AIDS, prolonged use of steroids or other immune-modifying medication and inherited genetic defects.

Q: What are some precautionary measures I can take against COVID-19? 

1. Wash your hands regularly

Washing your hands properly means using soap and water and washing for at least 20 seconds. You can also use hand sanitiser with an alcohol content of 60 – 90%.

2. Avoiding touching your face

If you have to cough or sneeze, try to do it into your elbow or a tissue, and then wash your hands afterwards.

3. Stay away from other people who are ill

This holds true for yourself as well. If you're feeling sick yourself, do stay away from others.

4. Practise social distancing

You should also take additional precautionary measures such as maintaining social distance and avoiding crowded areas as much as possible. Be sure to check government websites for updates on best practices and campaigns like SG Clean.

5. Wear a mask when you're out

A mask will help keep respiratory droplets from coughing and/or sneezing in, and stop the spread to the surrounding environment.

6. Seek medical attention

If you develop symptoms of a respiratory illness after returning from travel, do be sure to check in with your doctor, to make sure that you get early attention.

7. Stay Protected with the Latest COVID-19 Vaccines

Those who are fit and of age for vaccination are encouraged to do so for the collective protection of the population.

The COVID-19 vaccine is recommended for those in higher-risk groups, including older adults, medically vulnerable individuals (from as young as 6 months old), and those who live or work closely with them. This includes healthcare workers and residents of aged care facilities.

If you are pregnant, on treatment for cancer, being treated for other medical conditions and/or are unsure if you can be vaccinated, you are advised to consult your doctor.

Q: COVID-19 has made me more mindful of my physical well-being. What can I do to stay healthy?

Eat a well-balanced diet

Avoid unhealthy foods such as junk food, instant noodles, and processed items. Instead, choose healthier options like wholegrains, vegetables, and fruits. Eating a wide variety of foods in the right proportions supports overall health and helps maintain a strong immune system to keep infections at bay.

Give up the cigarettes

Quitting smoking reduces the risk of chronic heart and lung disease and also reduces susceptibility to lung infections.

Quitting can be tough, so look to your friends and family for moral support, and your health care professional for possible solutions!

Get your dose of exercise

Stay active throughout the day; you don’t need to hit the gym to burn calories. Everyday movements, also known as NEAT (Non-Exercise Activity Thermogenesis), contribute to your energy expenditure.

Don’t forget to get enough sleep, manage stress, stay hydrated, and keep up with your regular health screenings and recommended vaccinations.

Health screenings

Regular screenings are a great way to make sure that you're in the pink of health.

While you may be feeling perfectly healthy, chronic conditions – including high blood pressure, diabetes and high cholesterol levels – may have no symptoms during their early stages, and hence may go undetected.

A health screening will give you an early heads-up, and help prevent further development of the disease and its complication. Parkway Shenton health screening services are tailored to individual needs, with centres strategically located to give you quick access to specialists if necessary.

Do try to schedule a health screening annually, especially if you've reached the age of 40, or have a family history of health conditions.

Get vaccinated

The COVID-19 vaccine is free for Singaporean citizens and long term residents in Singapore. The vaccines currently used in the National Vaccination Programme are Pfizer-BioNTech/Comirnaty and Moderna/Spikevax. They are available at selected Healthier SG clinics and polyclinics.

If you are having respiratory symptoms such as a cough, runny nose or fever, do visit your nearest Parkway Shenton clinic