What became known as Covid-19, or the coronavirus, started in late 2019 as a cluster of pneumonia cases with an unknown cause. The cause of the pneumonia was found to be a new virus – severe acute respiratory syndrome coronavirus 2, or Sars-CoV-2. The illness caused by the virus is Covid-19.
Now declared as a pandemic by the World Health Organisation (WHO), the majority of people who contract Covid-19 suffer only mild, cold-like symptoms.
WHO says about 80% of people with Covid-19 recover without needing any specialist treatment. Only about one person in six becomes seriously ill “and develops difficulty breathing”.
So how can Covid-19 develop into a more serious illness featuring pneumonia, and what does that do to our lungs and the rest of our body?
How is the virus affecting people?
Guardian Australia spoke with Prof John Wilson, president-elect of the Royal Australasian College of Physicians and a respiratory physician.
He says almost all serious consequences of Covid-19 feature pneumonia.
Wilson says people who catch Covid-19 can be placed into four broad categories.
READ MORE: https://www.theguardian.com/world/2020/mar/24/coronavirus-what-happens-to-peoples-lungs-if-they-get-covid-19