Corona Virus 2019: Symptoms and Causes of Covid 19 | Dr. Rela Institute, Chennai

Covid 19


Corona viruses are large family viruses which cause respiratory illness in human and animals (zoonotic). The recent outbreak of Corona virus has not been identified earlier and it believed to be originated from a “wet market” otherwise called a live animal market from the city of Wuhan in central China. Many theories and speculations are making rounds since the outbreak of the Novel Corona Virus on 27 December 2019. Scientists believed that the virus spread is an interspecies (Bat- Pangolin-Human) transfer might have migrated from animal to human-based on genomic analysis, still the exact origin is unclear. The genomic study however, suggests that the SARS-COV-2 virus now named as Covid 19 (Corona virus disease 19) is the result of recombination of 2 different viruses. With the widespread of the infection across the world crossing boundaries in weeks the WHO declared Covid 19 pandemic on 11 March 2020.

Myths and facts

#1Covid 19 does not spread in the hot climate

Fact – According to WHO the Covid 19 strain can be transmitted irrespective of the geographic specification.

#2 – A mask will save me from getting infected

Fact – WHO does not recommend the usage of the mask to prevent Covid 19. Having said that people with respiratory symptoms can use a mask.

#3 – Frequently sipping on the water will keep you away from the virus infection

Fact - Trudie Lang, a University of Oxford professor who specialises in global health told that washing away a respiratory virus is impossible.

#4 – A vaccine is available for Covid 19

Fact - There is no vaccine made available for the new Corona virus called the Covid 19 yet. Scientists are still working on clinical trials.

#5 – You can get rid of Covid 19 by gargling with bleach or taking acetic acid or steroids

Fact – None of these will protect you against the infection and these practices are mostly dangerous.

#6 – Breath hold test will tell you if you have been infected with Covid 19

Fact – No many patients (mostly young) who are infected still can hold their breath for about 10 -15 seconds. This does not confirm Covid 19 infection.


Do’s and Don’ts


  1. Washing and sanitizing hands more frequently with soap and water or a hand rub.
  2. Cover your cough or sneeze with a handkerchief or a tissue paper, throw away the used tissue immediately. Handkerchief used should be washed daily by yourself and dry in the hot sun.
  3. Social distancing or physical distancing between people has to be followed. There must be atleast 1 meter apart.
  4. Avoid touching your eyes, nose or mouth. Hands being the major source of transmission.
  5. People who have a common cold or flu like symptoms should use masks and it has to be disposed of properly into a covered bin. Stay indoors in a well ventilated room.
  6. If you have fever, Cough, sore throat seek medical attention immediately.
  7. If you are caring people with symptoms use masks.
  8. Follow only the facts as and needed. Use help lines provided by the government


  1. Avoid direct contacts like handshakes and hugging
  2. Avoid close contact with people who are sick
  3. If you have flu like symptoms do not go to public places or social gatherings etc
  4. Don’t use mask if you are absolutely normal
  5. Don’t take self medications
  6. Stay indoors as much as possible. Delay your travel programs
  7. Do not believe in whatever is being shown or told by social media.


Major Symptoms are

  1. Fever
  2. Cough
  3. Sore throat
  4. Difficulty in breathing
  5. Others are Running nose, Sneezing, Body pain and weakness
  6. Some progress to severe pneumonia and multi-organ failure

Home quarantine or self-isolation is one way to stay safe and also help avoid community spread. The main purpose of quarantine is to limit the spread and stay safe as well. What can be done to have a safe quarantine?

  • Avoid visitors and stay indoors as much as possible
  • In a period of lockdown, it is not a time to socialize with neighbours. Avoid sharing household items.
  • Wash your cloths everyday
  • Keep yourself clean and follow the basic sanitization at home as well.
  • Avoid smoking or drinking
  • Eat healthy and add mostly immune foods to your diet. Avoid binge eating.
  • Eat frequent portions than the usual 3 big portions
  • Exercise atleast for 30 minutes and stay fit
  • Take your mind away from the crisis by avoiding consistent updates about the coronavirus
  • Listen to music, play with your kids, have a good family time keeping the social distancing in mind.
  • Self awareness, self responsibility is very important in quarantine.
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