Publications by authors named "S H Nellis"

Background: Heatwaves present health risks globally but there is limited evidence on how temperature perceptions affect activities. This study aimed to examine community perceptions of heat as a potential health hazard and ascertain the current heat protection measures of the residents of the South East Asia Community Observatory (SEACO) in Malaysia.

Methods: In this longitudinal study, we randomly selected community members aged between 18 and 70 years who resided in Segamat district of Johor state, Malaysia.

View Article and Find Full Text PDF
Article Synopsis
  • Malaysia faces significant climate challenges, including increased heat and rainfall variability, which could lead to health issues like respiratory diseases and potential migration due to uninhabitable areas.
  • * This study aims to evaluate the reliability of sensor-based devices to improve research on climate change's health impacts, focusing on lung conditions such as COPD and asthma among participants in Malaysia.
  • * By collecting data on health metrics and environmental factors, the study expects to uncover important connections between climate conditions and the prevalence of climate-sensitive diseases, while also assessing the usability of these technologies.*
View Article and Find Full Text PDF

Dengue is a complex disease with an increasing number of infections worldwide. This study aimed to analyse spatiotemporal dengue outbreaks using geospatial techniques and examine the effects of the weather on dengue outbreaks in the Klang Valley area, Kuala Lumpur, Malaysia. Daily weather variables including rainfall, temperature (maximum and minimum) and wind speed were acquired together with the daily reported dengue cases data from 2001 to 2011 and converted into geospatial format to identify whether there was a specific pattern of the dengue outbreaks.

View Article and Find Full Text PDF

Dengue is an endemic mosquito-borne viral disease prevalent in many urban areas of the tropic, especially the Southeast Asia. Its presence among the indigenous population of Peninsular Malaysia (), however, has not been well described. The present study was performed to investigate the seroprevalence of dengue among the (OA) residing at the forest fringe areas of Peninsular Malaysia and determine the factors that could affect the transmission of dengue among the OA.

View Article and Find Full Text PDF

Dengue virus type 3 genotype III (DENV-3/III) is widely distributed in most dengue-endemic regions. It emerged in Malaysia in 2008 and autochthonously spread in the midst of endemic DENV-3/I circulation. The spread, however, was limited and the virus did not cause any major outbreak.

View Article and Find Full Text PDF