If you’ve been following The Dossier you’ll know that I’ve been collecting data on the Covid-19 omicron outbreak that we are in the midst of. I’ve made observations that confirm that omicron causes milder symptoms than other forms of Covid-19. But the less severe nature of omicron is offset, at least in part, by omicron being highly transmissible. Even though on average omicron causes less severe symptoms, there is always a percentage of individuals that show more severe symptoms than the average.
This percentage, though small, can easily represent a large number of people presenting to hospitals and requiring treatment in ICU’s across the country.
Indeed, I’ve shown in my article: Further Steep Increases in Covid-19 Cases, observations that there are increased hospitalisations already occurring in NSW as well as a worrying uptick in hospitalisations and deaths in other States and Territories. Given these factors, quantitatively determining the transmissibility of the omicron variant is critical to the management of the current outbreak.
In this article, we’ll attempt to do just that using the Covid-19 data presented in the chart below which shows case numbers for Australian States and Territories over the month ending Friday 7th January. As you can see from this chart, case numbers are showing rapid growth but is that growth exponential?
Continue reading “Covid-19 Data: Exponential Growth Confirmed”
Australia is now firmly in the grip of the omicron outbreak with accelerating cases in all states and territories except WA as shown in the chart below. The evidence of omicron‘s impact on people’s lives is being seen in the long lines for testing, people becoming frustrated at waiting or being turned away because of early closures of centres over the holidays. People that have been able to get tested have had to wait days for their results to be processed. Others have thought to find rapid antigen testing (RAT) kits only to find that they are difficult or impossible to procure. Many, especially families, are finding that the cost of RAT kits are prohibitive (at $150 plus each). In summary, omicron has become highly disruptive given Government demands for testing compliance but fortunately, the illness itself isn’t as severe as the delta variant from reports so far.
It’s hard to estimate the true number of omicron cases versus delta because the distinction requires genomic sequencing which takes a week or two for results to become known. However, it’s thought that around 80% of cases are omicron in Australia at the moment, with omicron becoming the dominant variant within another week or so..
Meanwhile, over in New Zealand …
Continue reading “Meanwhile Over in New Zealand …”
The charts below show the number of cases, hospitalisations and deaths from Covid-19, respectively. The data are but shown by State and Territory over the month of Dec 2021.
A feature of the Covid-19 data is the accelerating case numbers, as can be seen from comparing the charts shown in The Dossier over the Christmas – New Year period. In the chart immediately below, cases for NSW have almost doubled in one day to 21,151. Cases for all other States and Territories have increased to record levels as well, except for WA.
More charts after the jump.
Continue reading “Further Steep Increases in Covid-19 Cases”
Today Covid-19 cases were at record levels in all Australian States and Territories except for WA. For NSW, 11201 new cases were recorded today, demonstrating that the apparent levelling cases at around 6000, over the past few days, were an artefact of reduced collections and processing of results over the Christmas period. Indeed, there were likely more Covid-19 circulating over the holiday period than revealed by the published health data (especially in NSW).
Ever since the omicron variant started infecting students and young adults in Gauteng Province in South Africa, it has seemed to be too good to be true: a variant that is much more transmissible (so that it replaces the more dangerous delta variant) but of itself, produces mostly mild symptoms with fewer hospitalisations. Bur omicron is still Covid-19; it hasn’t magically transformed itself into some kind of more friendly disease.
Is this the sting in the tail of omicron?
Continue reading “Could Omicron’s “Sting in the Tail” Threaten Children?”
The sharp increase noted on Christmas Eve have stabilised somewhat in most States and Territories in Australia over the Christmas weekend though the increase observed increase on Boxing Day was a record for NSW since the pandemic began. The chart below shows the case numbers for Australia over the last month by State or Territory. Although most States showed modest increases these data may have been affected by long lines and more limited collections over the Christmas period. Indeed, many people have reported being turned away from getting tested at all.