Morbidity in schistosomiasis: an update.

Area of Science:

• Tropical Medicine
• Parasitology
• Immunology

Background:

• Schistosomiasis affects over 200 million people globally, posing a significant poverty-related health challenge.
• Understanding schistosomiasis morbidity is essential for effective disease control strategies.

Purpose of the Study:

• To review recent literature (April 2003-June 2004) on schistosomiasis morbidity and influencing factors.
• To update knowledge on schistosomiasis and stimulate further research.
• To highlight advances in understanding immune responses, genetic predispositions, and co-infections.

Main Methods:

• Literature review of papers published between April 2003 and June 2004.
• Focus on schistosomiasis morbidity, associated factors, and host-parasite interactions.
• Inclusion of research on immune responses, genetic predisposition, and co-infections.

Main Results:

• Severe morbidity is linked to immune regulation mechanisms and genetic factors influencing periportal fibrosis.
• Co-infection with malaria can exacerbate hepatosplenic schistosomiasis morbidity and alter immune responses.
• Schistosomiasis may increase susceptibility to HIV infection and transmission risk.
• Genomic resources for Schistosoma mansoni and Schistosoma japonicum are now available.

Conclusions:

• Significant progress has been made in understanding schistosomiasis epidemiology, immunology, and genetics.
• Continued research is vital for sustainable disease control, requiring diverse expertise.
• Strengthening research capacity in endemic countries is a priority for advancing schistosomiasis control efforts.