The genus Rickettsia in Mexico: Current knowledge and perspectives.

Area of Science:

• Microbiology
• Infectious Diseases
• Veterinary Medicine

Background:

• Rickettsia bacteria are obligate intracellular pathogens responsible for numerous emerging and re-emerging zoonotic diseases globally.
• Understanding Rickettsia diversity, host associations, and geographic distribution is crucial for disease surveillance and control.

Purpose of the Study:

• To compile and synthesize existing knowledge on Rickettsia species in Mexico up to 2020.
• To update the taxonomy of Rickettsia and their hosts within the country.
• To clarify host-parasite interactions and map the distribution of Rickettsia species in Mexico.

Main Methods:

• Comprehensive literature review of Rickettsia records in Mexico until 2020.
• Taxonomic classification of identified Rickettsia species and their associated hosts.
• Analysis of host-parasite relationships and geographical distribution patterns.

Main Results:

• Four Rickettsia groups and 14 distinct species have been documented in Mexico.
• These bacteria are associated with 26 arthropod species (including hard ticks, soft ticks, lice, and fleas) and 17 mammal species.
• Rickettsia infections have been recorded in 30 Mexican states, indicating widespread presence.

Conclusions:

• Mexico possesses a rich diversity of Rickettsia species and a complex network of host associations.
• The findings underscore the importance of a One Health approach for studying Rickettsia and managing associated diseases.
• Continued surveillance and research are essential to fully understand and mitigate the impact of Rickettsia in Mexico.