Objective:To analyze trends of dengue incidences and deaths in Malaysia from 2000 to 2010 as well as the predominant dengue virus serotypes during the last decade.Methods:We used the national data on annual reported c...Objective:To analyze trends of dengue incidences and deaths in Malaysia from 2000 to 2010 as well as the predominant dengue virus serotypes during the last decade.Methods:We used the national data on annual reported cases,deaths,incidence rate,mortality rate,and case fatality rate of dengue fever(DF) and dengue hemorrhagic fever(DHF) as well as dengue virus serotypes prevalent in Malaysia during the last decade.Trend/ regression lines were fitted to investigate the trend of dengue incidences and deaths due to the disease for a 11-year period(2000-2010).For the distribution of national incidence rate,mortality rate,and case fatality rate of DF and DHF, descriptive statistics using mean and 95%confidence intervals(C/) for means,and range were applied.Results:The number of dengue cases and number of deaths have increased,on average, by 14%and 8%per year respectively.The average annual incidence rate of DF per 100 000 populations was higher as compared to that of DIIF.Conversely,the yearly mean mortality rate of DHF per 100 000 populations was greater than that of DF.The simultaneous circulation of all four dengue serotypes has been found in Malaysia.But a particular dengue virus serotype predominates for at least two years before it becomes replaced by another serotype.Conclusions: The dengue situation in Malaysia has worsened with an increasing number of reported oases and deaths during the last decade.The increasing trend of dengue highlights the need for a more systematic surveillance and reporting of the disease.展开更多
For the assessment of the impact of future climate change on the hydrologic regime and water resources of Peninsular Malaysia, it is necessary to downscale the climate change simulations of a coarse scale General Circ...For the assessment of the impact of future climate change on the hydrologic regime and water resources of Peninsular Malaysia, it is necessary to downscale the climate change simulations of a coarse scale General Circulation Model to the region of Peninsular Malaysia at fine grid resolution. This paper presents a desktop review of the state of climate change parameters, namely rainfall and river flow over the Peninsular Malaysia for the 2041-2050 projection period. Analysis of the results from the models shows there will be a substantial increase in mean monthly precipitation over the North East Coastal region from historical 259.5 mm to 281.5 mm, from 289.0 mm to 299.0 mm and 221.8 mm to 239.5 mm over Terengganu and Kelantan, respectively. Meanwhile, for river flow projection, it will be an expected increase in interannual and intraseasonal variability with increased hydrologic extremes （higher high flows, and lower low flows） at Kelantan, Pahang, Terengganu, and Kedah watersheds in the future.展开更多
基金funded and supported by the Dana Operasi Universiti Penyelidikan(Ref No.UKM-OUP-PI-25-114/2011)Arus Perdana(Ref.No.UKM-AP-PI -18-2009/3>)Crant Universiti Penynlidikan(Ref.No.UKM-GUP-PI-08-35-083)
文摘Objective:To analyze trends of dengue incidences and deaths in Malaysia from 2000 to 2010 as well as the predominant dengue virus serotypes during the last decade.Methods:We used the national data on annual reported cases,deaths,incidence rate,mortality rate,and case fatality rate of dengue fever(DF) and dengue hemorrhagic fever(DHF) as well as dengue virus serotypes prevalent in Malaysia during the last decade.Trend/ regression lines were fitted to investigate the trend of dengue incidences and deaths due to the disease for a 11-year period(2000-2010).For the distribution of national incidence rate,mortality rate,and case fatality rate of DF and DHF, descriptive statistics using mean and 95%confidence intervals(C/) for means,and range were applied.Results:The number of dengue cases and number of deaths have increased,on average, by 14%and 8%per year respectively.The average annual incidence rate of DF per 100 000 populations was higher as compared to that of DIIF.Conversely,the yearly mean mortality rate of DHF per 100 000 populations was greater than that of DF.The simultaneous circulation of all four dengue serotypes has been found in Malaysia.But a particular dengue virus serotype predominates for at least two years before it becomes replaced by another serotype.Conclusions: The dengue situation in Malaysia has worsened with an increasing number of reported oases and deaths during the last decade.The increasing trend of dengue highlights the need for a more systematic surveillance and reporting of the disease.
文摘For the assessment of the impact of future climate change on the hydrologic regime and water resources of Peninsular Malaysia, it is necessary to downscale the climate change simulations of a coarse scale General Circulation Model to the region of Peninsular Malaysia at fine grid resolution. This paper presents a desktop review of the state of climate change parameters, namely rainfall and river flow over the Peninsular Malaysia for the 2041-2050 projection period. Analysis of the results from the models shows there will be a substantial increase in mean monthly precipitation over the North East Coastal region from historical 259.5 mm to 281.5 mm, from 289.0 mm to 299.0 mm and 221.8 mm to 239.5 mm over Terengganu and Kelantan, respectively. Meanwhile, for river flow projection, it will be an expected increase in interannual and intraseasonal variability with increased hydrologic extremes （higher high flows, and lower low flows） at Kelantan, Pahang, Terengganu, and Kedah watersheds in the future.
