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Lee Chee Yann
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Sunday 28 June 2009

Influenza A(H1N1)

I got HQO'd for a week (and it was the final week of the June hols too!) and had nothing better to do, so I came up with this:


Graph showing projected number of cases versus the number of days since the start of the outbreak (Day 1 - 27 May, first confirmed case in Singapore). Point represent actual data, collated from the MOH press releases http://www.moh.gov.sg/mohcorp/pressreleases.aspx.

27 June forecast - 430 cases | Actual - 454 cases (5.3% error)
28 June forecast - 526 cases | Actual - 599 cases (12.2% error)
29 June forecast - 686 cases | Actual - 629 cases (8.3% error)
30 June forecast - 787 cases | Actual - 701 cases (11.0% error)
1 July forecast - 830 cases | Actual - 783 cases (5.7% error)
2 July forecast - 886 cases | Actual - 878 cases (1.1% error)
3 July forecast - 962 cases | Actual - 969 cases (0.7% error)
4 July forecast - 1043 cases | Actual - 1003 cases (3.8% error)
5 July forecast - 1081 cases | Actual - 1055 cases (2.4% error)
6 July forecast - 1117 cases | Actual - 1111 cases (0.5% error)
7 July estimate - 1155 cases
8 July estimate - 1188 cases
9 July estimate - 1215 cases
10 July estimate - 1237 cases

The graph shown is [ y = 1316.66 / (1+ 7040.92e^(-0.2577x)) ] using the logistic function. This model estimates that a total of 1317 people will be infected with H1N1. This estimate is inaccurate, and will change as more data is put into the model.

This page is (should) be updated daily as new reports are released.

{- LCY: Love Christ? Yeah! -} on 10:05 am