Abstract
Chikungunya virus (CHIKV) is an arbovirus transmitted by Aedes mosquitos in tropical and subtropical regions across the world. After decades of sporadic outbreaks, it re-emerged in Africa, Asia, India Ocean and America suddenly, causing major regional epidemics recently and becoming a notable global health problem. Infection by CHIKV results in a spectrum of clinical diseases including an acute self-limiting febrile illness in most individuals, a chronic phase of recurrent join pain in a proportion of patients, and long-term arthralgia for months to years for the unfortunate few. No specific anti-viral drugs or licensed vaccines for CHIKV are available so far. A better understanding of virus-host interactions is essential for the development of therapeutics and vaccines. To this end, we reviewed the existing knowledge on CHIKV’s epidemiology, clinical presentation, molecular virology, diagnostic approaches, host immune response, vaccine development, and available animal models. Such a comprehensive overview, we believe, will shed lights on the promises and challenges in CHIKV vaccine development.
Keywords: chikungunya virus (CHIKV), epidemiology, molecular virology, host immune response, vaccine development
Acknowledgments
We thank Dr. Chao Zhang (Zerun Biotech Co., Ltd., China) for his help in editing the global heat map of accumulative CHIKV cases. This work is supported in part by the National Key Program Project Grant from MOST #2016YFC1201000.
Footnotes
This article is published with open access at Springerlink.com
These authors contributed equally to this work.
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