Volatile Yard 挥洒自如 Write anything I want to write...

Last Updated: 06-Mar-2010 10:06 MYT

H1N1 has invaded Malaysia, and the threat is not over yet. So in addition of keeping track of the current global situation, I have also created this post to illustrate the current situation in Malaysia.

** The number of death cases

** The number of confirmed cases (Obsolete! I have stopped updating this as it seems that the updated figures are not updated regularly after 12-Aug-2009)

Important updates:

• 15-May-2009: First confirmed case
• 18-Jun-2009: First locally transmitted case
• 13-Jul-2009: First time that a daily H1N1 count shows more locally transmitted cases
• 17-Jul-2009: WHO said that the pandemic has been spreading at an unprecedented speed. Ministry of Health will focus on cases that require treatments in hospitals and clusters of ILI (Influenza-Like Illness). Statistics since 18-Jul-2009 reflect only these two situations.
• 23-Jul-2009: First A(H1N1)-related death case [thestar.com.my] occurred on 21-Jul-2009. A(H1N1) was not the direct cause as he died from cardiac arrest due to ventricular fibrillation.
• 27-Jul-2009: Second A(H1N1)-related death case [thestar.com.my] occurred on 26-Jul-2009.
• 28-Jul-2009: Third death case [thestar.com.my].

Source: H1N1 Situation [h1n1.moh.gov.my] (Ministry of Health Malaysia)

I use Gnuplot [gnuplot.info] to generate the charts with the help of a script and a data file (in which I updated it manually). I have also written a python script to automate the update process: Generates, previews, and uploads the chart to the website.

Last Updated: 06-Mar-2010 02:06 UTC

Update: I'm still updating this post regularly with the global statistics available from Ministry of Health, Malaysia.

The threat of Influenza A(H1N1) is not over yet. I have created the charts below to illustrate the current situation, and will update them regularly with my scripts (That's why I put this post under 'Programming' too, and see below if interested).

There is another post that keeps track of the current situation in Malaysia.

Other important updates:

• 25-Apr-2009: WHO declared Phase 3 for pandemic alert level [who.int]
• 27-Apr-2009: WHO raised pandemic alert level to Phase 4 [who.int]
• 29-Apr-2009: WHO raised pandemic alert level to Phase 5 [who.int]
• 11-Jun-2009: WHO raised pandemic alert level to Phase 6 [who.int]
• 16-Jul-2009: WHO would no longer issue the global tables showing the numbers of confirmed cases for all countries [who.int]
• 04-Dec-2009: WHO no longer issued the number of reported confirmed cases [who.int]

** The number of death cases

** The number of confirmed cases (Up to 22-Nov-09 only)

** The mortality rate (Up to 22-Nov-09 only) (Note: The figures are obtained simply by dividing the number of death cases by the number of confirmed cases. Since confirmed cases need not be reported after July-2009, the mortality rate after that does not really reflect the actual situation.)

Source: WHO updates on Influenza A(H1N1) [www.who.int]

I use Gnuplot [gnuplot.info] to generate the charts with the help of a script and a data file. I used to use a python script to automate the entire update process: Fetches the latest updates from WHO website, parses the page, generates the latest data file, generates the charts, and finally uploads the charts. However, since the format became less well-formatted starting from update 60, I have since abandoned the script and update the data manually.

Official References (From the online PHP Manual):

• Classes and Objects (PHP 5): http://www.php.net/manual/en/language.oop5.php
• Type Operators: http://www.php.net/manual/en/language.operators.type.php
• Class/Object Functions: http://www.php.net/manual/en/book.classobj.php

Basic

The sample code here demonstrates the following techniques:

• The use of POSIX fcntl() to perform file locking
• The realization of mutual exclusion via file locking

The sample codes here demonstrate the following techniques:

• Concurrent FTP Server
• The use of standard I/O with POSIX sockets
• The handling of Unix signal SIGCHLD to prevent terminated children from becoming zombies
• The handling of system calls interrupted by caught signals

Use pipes (nameless/unnamed) and FIFO files (named pipes) in POSIX.

Last Updated: 12-Nov-08

We want to make a Unix system call select() and proceed only when

• some file descriptors are ready for reading, or
• some file descriptors are ready for writing, or
• after 2.3 seconds (maximum) have elapsed.