Numbers of COVID-19 cases have risen sharply since early March in Australia, with the majority of infections in those aged 20-69, according to the latest government figures mapping the impact of coronavirus across the country.

Most of the infections occur in NSW, which has more than 800 cases, more than double the number of the next most-impacted state, Victoria.

Infections acquired overseas are responsible for the majority of cases in NSW, SA, Tasmania, Victoria and WA. Most of these are from Europe, followed by the US.

Other countries or areas that have made a significant impact include (in decreasing order): South-East Asia; New Zealand and the Pacific; North-East Asia (including China); North Africa and the Middle East; Southern and Central Asia and Sub-Saharan Africa.