lovetravellingoz
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- Jul 13, 2006
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I note that there is a hypothesis that SA has a super contagious strain with the current outbreak. If this is so, where are all the cases?
If it is super contagious then would transmission not have been extremely high and widespread?
In Vic in the second wave in clusters over similar timespans to this SA cluster there were clusters with much greater case numbers, and this was in settings with substantial restrictions and control measures to limit transmission in place, whereas SA had virtually nil.
Only 22 cases so far, and most are in the one family. And these were all when apart from the hotel workplace were in settings with virtually no control measures were at play. Time frame was say 6-14th November from early infection to first confirmed tests
What has been involved is a large family, and we know from the Vic Second Wave that large families, and crowded workplaces like abattoirs, were the main reason why the Ro of the Second Wave was much higher that for the first wave, and this led to more rapid spread. ie People gathering indoors in close proximity.
When measures were still quite strict in Vic you had one cleaner work for 3 days while infected at the Butcher Club. She was also in a large family (13 cases) and The Butcher Club Outbreak went from 8 cases on day one 1st Oct to 31 cases by 7 October. Containment measures were commenced and it grew to 39 cases by the 20th. So this combined cluster in a similar time frame had about double the cases of the SA clusters, but did so in a setting with substantial restrictions and controls in place to slow down transmission.
Casey Household Cluster: Day one 1 case on 14th Oct. By 17th Oct 34 and by 20th Oct 43 cases.
Dandenong Police Station Cluster: Went to 13 cases in a few days.
Bertochi Smallgoods Cluster in early August went to 196 cases in just over a week!
etc
If it is super contagious then would transmission not have been extremely high and widespread?
In Vic in the second wave in clusters over similar timespans to this SA cluster there were clusters with much greater case numbers, and this was in settings with substantial restrictions and control measures to limit transmission in place, whereas SA had virtually nil.
Only 22 cases so far, and most are in the one family. And these were all when apart from the hotel workplace were in settings with virtually no control measures were at play. Time frame was say 6-14th November from early infection to first confirmed tests
What has been involved is a large family, and we know from the Vic Second Wave that large families, and crowded workplaces like abattoirs, were the main reason why the Ro of the Second Wave was much higher that for the first wave, and this led to more rapid spread. ie People gathering indoors in close proximity.
When measures were still quite strict in Vic you had one cleaner work for 3 days while infected at the Butcher Club. She was also in a large family (13 cases) and The Butcher Club Outbreak went from 8 cases on day one 1st Oct to 31 cases by 7 October. Containment measures were commenced and it grew to 39 cases by the 20th. So this combined cluster in a similar time frame had about double the cases of the SA clusters, but did so in a setting with substantial restrictions and controls in place to slow down transmission.
Casey Household Cluster: Day one 1 case on 14th Oct. By 17th Oct 34 and by 20th Oct 43 cases.
Dandenong Police Station Cluster: Went to 13 cases in a few days.
Bertochi Smallgoods Cluster in early August went to 196 cases in just over a week!
etc