Declaring a pandemic has nothing to do with changes to the characteristics of a disease, but is instead associated with concerns over its geographic spread. According to the World Health Organization, a pandemic is declared when a new disease for which people do not have immunity spreads around the world beyond expectations.
Now the WHO has declared Covid-19 a pandemic, what will it mean for the way the outbreak is treated and prepared for?
The WHO has stressed that using the word “pandemic” does not signal a change in its advice. It is still urging countries to “detect, test, treat, isolate, trace and mobilise their people”.
Dr Nathalie MacDermott, National Institute for Health Research academic clinical lecturer King’s College London, says: “The change of term does not alter anything practically as the world has been advised for the last few weeks to prepare for a potential pandemic, which has hopefully been taken seriously by all countries.
“The use of this term however highlights the importance of countries throughout the world working cooperatively and openly with one another and coming together as a united front in our efforts to bring this situation under control.”