The 5 Leading Diseases That Causes Mortality Rate Under 5 Years of Age in the Philippines

Only available on StudyMode
  • Topic: Malaria, Plasmodium falciparum, Plasmodium
  • Pages : 2 (658 words )
  • Download(s) : 50
  • Published : June 10, 2011
Open Document
Text Preview
According to Aaby, Most hospital studies of measles mortality suggest that high case-fatality ratios are associated with malnutrition. However, no community study has documented this association. On the contrary, several community studies from Africa and Asia have found no relation between nutritional status and risk of severe or fatal measles. Instead, overcrowding and intensive exposure may be more important determinants of measles mortality. Clustering of several cases in the family and/or intensive exposure were associated with high measles mortality in community studies in West Africa, Bangladesh, and England. Thus sociocultural factors that concentrate many susceptible children in the home may increase the case-fatality ratio in measles. Conversely, this ratio will be lower when measles cases are dispersed. Siblings in rural areas, where long intervals separate epidemics, run a higher risk of contracting measles simultaneously than do their urban counterparts. Measles vaccination increases herd immunity and diminishes the clustering of several cases in a family. Vaccination may therefore reduce mortality even among unvaccinated children who contract measles. Crowding and intensive exposure may partly explain regional and historical variations in measles mortality; community studies suggest that mortality is high when a high proportion of measles patients have secondary cases (acquired through exposure at home). 1 According to Department of Health entomologist, Norma Joson, malaria is caused by four species of the Plasmodium parasite, namely P. falciparum, P. vivax, P. malariae and P. ovale. Only the first two are endemic to the Philippines. The parasite is primarily transmitted by the two species of Anopheles mosquito native to this country, the Anopheles flavirostris complex and the Anopheles maculatus complex. In the Philippines over 70 percent of malaria infections are due to P. falciparum infection. Only the female Anopheles mosquitoes transmit malaria,...
tracking img