The charts below provide a guide to show how Australia is faring in the fight against the spread of the coronavirus pandemic.
They use figures that are part of a national database of every confirmed case since January 25, when NSW and Victoria reported the country’s first four cases.
The database, compiled by ABC News, tracks confirmed cases by gender, age, location, source of infection and other information published in case reports from state and federal health authorities.
It is supplemented with additional reporting by ABC News and updated daily to show the spread of the disease across Australia’s states and territories.
The latest update was at 11:27 AM AEST on Sunday, April 5.
(Tap/hover on any chart for more information.)
Confirmed cases, cumulative count
Recent days may have incomplete data and are likely to be lower
To date, state and territory health authorities have reported 5,666 confirmed cases of COVID-19 in Australia, including 34 deaths.
New confirmed cases, daily count
Recent days may have incomplete data and are likely to be lower
Roughly 5 per cent , or 306 new cases, were reported in the past 48 hours.
(Note that national daily and cumulative counts are likely to be lower earlier in the day, as some states/territories will not have reported their figures yet.)
New confirmed cases, daily count
NSW
VIC
QLD
WA
SA
Recent days may have incomplete data and are likely to be lower
The NT has 26 confirmed cases of COVID-19, the ACT has 93 and Tasmania has 82.
But the number of confirmed cases is only part of the story. An important measure of the spread of infectious disease is the growth rate — in other words, how long it takes for the number of confirmed cases to double.
This is easier to see when the number of confirmed cases is plotted on a log scale.
Confirmed cases, cumulative count (log scale)
Recent days may have incomplete data and are likely to be lower
The chart above shows how often the number of confirmed cases in Australia doubles. It’s a key measure that shows how quickly the virus is spreading.
Each tick on the vertical axis is 10 times the value of the previous tick. The slope of the line shows how long it takes the number of cases to rise from 10 to 100 to 1000, and so on.
The steeper the line, the faster the growth rate.
Cumulative count by state/territory (log scale)
Recent days may have incomplete data and are likely to be lower
Here is the same chart but for each of the states and territories. It shows the largest states are on roughly the same growth trajectory.
A similar kind of chart can be used to compare Australia’s growth rate to other countries.
This one uses the same log scale but rather than exact dates, it tracks each country’s cumulative case count from the day that country reached 100 cases. This brings each country onto the same timeline.
It shows the growth rate in Australia is slower than in the US or Italy — where cases double every 2-3 days — but faster than Japan, Taiwan or Singapore, where it takes a week or longer for cases to double.
The chart also shows that countries such as South Korea and China started with very steep growth rates but now have much flatter lines, which means they have successfully slowed their growth rates. (For more on how other countries are winning the fight against COVID-19, read this analysis.)
Cases per 100,000 residents
Figures for Australia show NSW has the highest number of cases, making up 46 per cent of the total number of infections, followed by Victoria and Queensland.
However, the picture shifts when population size is taken into account.
Adjusting the figures for the number of residents shows NSW has the highest rate of infection per 100,000 residents, followed by SA, then ACT.
NT has the lowest rate of infection, followed by Tasmania.
But there’s more to infection rates than case numbers.
Positive tests (% of total)
Tasmania's figures have been inflated by positive tests among interstate cruise ship and overseas arrivals.
Data on the percentage of tests that come back positive for COVID-19 show Tasmania, then WA and NSW, have the highest positive test rates, while NT and SA have the lowest.
This is because case numbers and diagnosis rates are heavily influenced by the rate of testing. The more samples tested, the more cases found.
Number of tests
NSW has tested the most samples of any state or territory, followed by Queensland then Victoria.
However, adjusting for population shows SA has the highest rate of testing, at roughly 4 times the rate in Tasmania, which has the nation’s lowest rate of testing.
NSW and ACT have the second- and third-highest rates of testing, respectively.
Tests per 100,000 residents
Another way of looking at rates of testing is to compare the number of residents to the number of tests, both as a share of the national total.
This shows NSW and SA lead the nation when it comes to testing, while Victoria, WA and Tasmania lag significantly.
Tests versus residents (% of total)
NSW accounts for 32 per cent of Australia’s population but 42 per cent of samples tested in Australia, while SA accounts for 7 per cent of the population but 11 per cent of tests.
By contrast, Victoria makes up 26 per cent of the population but only 19 per cent of tests.
Similarly, WA accounts for just over 10 per cent of Australia’s population, but only 6 per cent of tests.
Deaths by age and gender
60-69
70-79
80-89
Over 90
Unknown age
Male
Female
Unknown
Nationally, 34 people have died — sixteen in NSW, eight in Victoria, three in Queensland, three in WA, two in Tasmania and two in ACT.
Health authorities have not released any national data on the severity of diagnosed cases in Australia.
However, according to the World Health Organisation, global data to date suggest 80 per cent of infections are mild or produce no symptoms, 15 per cent are severe and require oxygen, and 5 per cent are critical infections requiring mechanical ventilation.
Recoveries* and deaths
Recovered
Current
Deceased
*Recoveries are likely to be much higher as this figure is only reported in four jurisdictions.
Across Australia, at least 687 people have recovered. This figure underestimates the true number of recoveries because it is reported in only four jurisdictions — Victoria, WA, the ACT and Tasmania — and only Victoria reports this figure daily.
A NSW Health media spokeswoman told ABC News it does not report this figure because it is too difficult to define when a person is considered to have recovered from the disease.
However, assuming recoveries are not limited to only four jurisdictions, the national number of confirmed current cases is less than 4,945.
Cases by age group
Data from National Notifiable Diseases Surveillance System. May differ from latest federal authority figures.
People in their 20s have the most confirmed cases of any age group.
However, adjusting these numbers for the size of each age group shows people in their 60s have the highest rate of confirmed cases.
They are followed by three age groups with similar rates: people in their 20s, in their 70s, and those in their 50s.
Age-specific rate (cases per 100,000)
Data from National Notifiable Diseases Surveillance System. May differ from latest federal authority figures.
When a case is confirmed, health authorities undertake detailed tracing to identify the source of transmission.
Nationally, 66 per cent of cases were acquired overseas, while 27 per cent were acquired locally.
This includes 9 per cent transmitted locally with no known link to a confirmed case or cluster.
Source of infection
Overseas
Local - known link
Local - unknown link
Under investigation
Numbers shown here are estimates.
These figures reflect Australia’s previous testing criteria, which was criticised for focusing too heavily on patients who had recently returned from overseas and those who had been in close contact with a confirmed case.
A breakdown of the national data by gender suggests little difference in the rate of diagnosis between men and women.
Confirmed cases, by sex.END=GOLDEN AMITABHA MONASTERY=VIETNAMESE BUDDHIST NUN=THICH CHAN TANH.AUSTRALIA,SYDNEY.5/4/2020.
Male
Female
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