Neurocognitive impacts of arbovirus infections

Area of Science:

• Neuroscience
• Virology
• Public Health

Background:

• Arthropod-borne viruses (arboviruses) are pathogens transmitted by vectors like mosquitoes and ticks.
• Infections can range from mild febrile illness to severe conditions, including hemorrhagic fever and significant neuroinflammation.
• Neuroinflammation from arboviruses can result in neurological disorders such as encephalitis, paralysis, and developmental defects.

Purpose of the Study:

• To review clinical and mechanistic data on cognitive disturbances caused by arboviral infections.
• To emphasize the growing public health implications of arbovirus-induced cognitive impairments worldwide.

Main Methods:

• Literature review of clinical case studies.
• Analysis of mechanistic data from experimental studies.
• Synthesis of information on arboviral infections and their neurological sequelae.

Main Results:

• Arboviral infections are linked to acute neurological symptoms and long-term central nervous system (CNS) defects.
• Specific examples include Zika virus-associated congenital brain malformations and West Nile virus-induced synaptic dysfunction.
• Cognitive deficits can persist long after the initial infection, impacting individuals and public health.

Conclusions:

• Arboviral infections pose a significant threat due to their potential to cause lasting cognitive disturbances.
• Understanding these effects is crucial for addressing a growing global public health challenge.
• Further research is needed to elucidate mechanisms and develop effective interventions.