Corona Virus Disease (COVID-19) – How it Spreads?


Covid-19 has infected over 11 million people worldwide and claimed more than 5,00,000 lives with Europe and the United States passing China where the pandemic started last December 2019.

The above is the latest data by 12 July 2020. 

The data is self-explanatory about the current pandemic situation. To stop the spread of COVID 19 is still a big challenge for all countries. As the health and human toll is increasing, the economic damage is already evident and pictures the largest economic shock the world has experienced in decades.

At the moment, many countries have taken actions — some of them stringent — to slow down the spread of SARS-CoV-2 (the virus that causes COVID-19). While some of these countries are now considering whether to ease the measures, others have already decided to keep them in place over the following weeks.

How COVID Spreads?

The virus appears to spread easily among people, and more continues to be discovered over time about how it spreads. 

  • Data has revealed that it spreads from person to person among those in close contact from 6 feet or 2 meters. 
  • The virus spreads by respiratory droplets discharged when someone with the virus coughs, sneezes, or communicate.
  •  These droplets can be inhaled or land in the mouth or nose of a person who is standing near to the infected person.
  • It can also spread if a person touches a surface with the virus on it and then touches his or her mouth, nose, or eyes, although this isn’t estimated to be the major cause of virus spread.

Preventive Measure to Slow Down the Spread of COVID 19

  • It is clear from available data and experience, that limiting close contact between infected people and others is central to breaking chains of transmission of the virus causing COVID-19. 
  • Prevention of transmission is best achieved by identifying suspect cases as quickly as possible, testing, and isolating infectious cases. 
  •  It is critical to identify all close contacts of infected people so that they can be quarantined to limit the onward spread and break chains of transmission.
  •  Quarantining close contacts, potential secondary cases will already be separated from others before they develop symptoms or they start emitting virus if they are infected, thus preventing the opportunity for further spread. 
  • The incubation period of COVID-19, which is the time between exposure to the virus and symptom onset, is on average 5-6 days but can be as long as 14 days. 
  •  Quarantine should be in place for 14 days from the last exposure to a confirmed case. If it is not feasible for the infected person to quarantine in a separate living space, self-quarantine for 14 days at home is required; those in self-quarantine may require support during the use of physical distancing measures to prevent the spread of the virus.

Masks are major barrier between you and COVID-19

  • Infected people without symptoms can transmit the virus, it is also advised to encourage the use of fabric face masks in public areas where there is community transmission and where other prevention measures, to maintain physical distancing, are not possible.
  • Fabric masks, if made and worn correctly, can serve as a barrier to droplets withdraw from the wearer into the air.
  • Masks must be practiced as part of a complete package of preventive actions, which includes regular hand hygiene, physical distancing, respiratory etiquette, environmental cleaning, and disinfection.
  •  Prescribed precautions also include avoiding indoor crowded gatherings as much as possible, in particular when physical distancing is not feasible, and ensuring good environmental ventilation in any closed setting. 
  • Regular use of a medical mask by health workers and caregivers working in all clinical fields, during all routine activities throughout the entire time.
  • Regular practice of hand hygiene. 
  •  Avoid overcrowded places to protect others, and ensure good environmental ventilation in all closed settings and appropriate environmental cleaning and sensitization.
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