Home > News > Nation
Saturday February 15, 2014 MYT 12:00:00 AM
Saturday February 15, 2014 MYT 10:55:05 AM
by loh foon fong, audrey edwards, wani muthiah, hemananthani sivanandam, AND a. ruban
PETALING JAYA: The current surge of dengue cases is the result of a change in variation of the dengue virus, the Health Ministry said.
Deputy Health director-general Datuk S. Jeyaindran said there was usually an outbreak whenever there was a change in the dengue virus serotype as fewer people would be immune to the serotype after the change.
Moreover, the current serotype, DEN-2, was more virulent, he said, adding: “That is why we are seeing more deaths.”
It was reported that 10,712 cases and 19 deaths were reported this year up to Feb 6 compared to 2,836 cases and eight deaths over the same period last year.
Based on previous reports, Malaysia experienced its worst dengue outbreak in 2008 with 49,335 cases, while the highest death toll was in 2010 with 134 fatalities from 45,901 reported dengue cases.
The numbers dropped the following year until last year when it began to increase again.
Dr Jeyaindran said that the DEN-2 serotype was discovered sometime mid-last year.
“Before that, it was the DEN-4 serotype,” he said.
“The DEN-2 serotype cases appeared to have started in Singapore and then were found in Johor at the end of last year and subsequently reached Malacca, Negri Sembilan and Selangor,” he said.
Dengue infections are caused by four closely related viruses, namely serotypes DEN-1, DEN-2, DEN-3 and DEN-4.
Each has different interactions with the antibodies in human blood serum.
The change in serotype is one reason a major dengue outbreak could occur as individuals are protected from infections with the remaining three serotypes for only two to three months after the first dengue infection.
When two or more dengue cases are detected in a village or a residential area, it is considered an outbreak.
Hospitals will not turn away any dengue cases
Patients left feeling impatient after long wait
Tags / Keywords:
Health, Family Community, Change in serotype the reason for outbreak
Subra: Dengue outbreak a tough fight
Current dengue spate due to normal major outbreak cycle
PAS rep: Government not Islamic, hence dengue outbreak
Water-borne virus outbreak in Perak under control, says Liow
Virus outbreak in state under control, says Liow
PAS’ Bangi rep appointed Selangor deputy speaker
Liow: New flood mitigation plans for Camerons, Terengganu
Minor scuffle at Parliament as group denied entry to submit petition
Angry neighbour held over noisy kid’s death
Teens behaving suspiciously offer RM1,800 bribe to cops
Welder’s family wants answers over alleged death in police custody
Tourists can whiz around Putrajaya in electric vehicles
Clarke picked by Aussies despite injury doubt
Third-party app bridges gap between Fitbit and Apple
Copyright © 1995-2014 Star Publications (M) Bhd (Co No 10894-D)