Human pediculosis, a global public health problem

Area of Science:

• Medical Entomology
• Parasitology
• Public Health

Background:

• Human pediculosis is caused by hematophagous lice, transmitted through direct/indirect contact.
• Information on the global burden and epidemiology of louse-borne diseases is limited.
• Lice infestation poses a significant public health challenge worldwide.

Purpose of the Study:

• To review the biology, epidemiology, diagnosis, and control of human lice infestation.
• To discuss recent advances in molecular taxonomy and genetics of lice.
• To highlight the public health significance of pediculosis.

Main Methods:

• A scoping review methodology was employed.
• Searched five major electronic bibliographic databases.
• Collated, categorized, and summarized information from 282 eligible studies.

Main Results:

• Human pediculosis remains a global public health issue affecting millions.
• Head lice and body lice may be conspecific, with distinct genotypes and ecotypes identified.
• Phylogenetic analysis revealed six distinct clades of human lice globally.
• Lice act as vectors for pathogens, and insecticides are crucial for control.
• Genome sequencing has enhanced understanding of louse genetic structure and evolution.

Conclusions:

• Human pediculosis is a widespread public health concern, especially in developing nations.
• Emerging omics technologies are vital for understanding louse physiology, ecology, and evolution.
• Further research using omics approaches can improve control and management strategies.