Leptospirosis: recent incidents and available diagnostics - a review

Area of Science:

• Infectious Diseases
• Microbiology
• Public Health

Background:

• Leptospirosis is a significant zoonotic disease with increasing incidence in Malaysia.
• Recent environmental factors, such as floods, have been linked to a rise in reported cases.
• Existing diagnostic methods for leptospirosis face limitations due to the slow growth of the causative organism, Leptospira.

Purpose of the Study:

• To review current research on leptospirosis.
• To analyze the recent incidence of leptospirosis in Malaysia.
• To evaluate the effectiveness of available diagnostic methods for leptospirosis detection.

Main Methods:

• A comprehensive literature search was conducted using PubMed, Google Scholar, and Google Search.
• Keywords included "Leptospira" and "leptospirosis".
• Seventy-six references were reviewed, encompassing research articles, health reports, and newspaper articles.

Main Results:

• Leptospirosis incidence has notably increased in Malaysia in recent years.
• Flooding events have been identified as a contributing factor to the surge in cases.
• Current diagnostic tools, including dark field microscopy, microscopic agglutination test (MAT), Polymerase Chain Reaction (PCR), and serological tests, are insufficient for timely and accurate diagnosis.

Conclusions:

• There is an urgent requirement for the development of novel, rapid diagnostic techniques for leptospirosis.
• Combining Polymerase Chain Reaction (PCR) and Enzyme-Linked Immunosorbent Assay (ELISA) is recommended for swift and precise diagnosis.
• Further research into the pathogenesis of Leptospira is crucial for developing safe and effective human vaccines.