| 1965 | First detected and isolated virus from two febrile cases in Nagpur, Maharashtra state, India [1, 2] |
| 1997 & 2002 | Warangal district, Andhra Pradesh investigations suggested its wide circulation in the country |
| 2003 | Andhra Pradesh 11 districts encephalitis outbreak affecting with CFR 56% |
| 2003 | Andhra Pradesh, India isolates. |
| 2004 | Vadodara district of Gujarat CHPV outbreak with 70% CFR in the pediatric population |
| 2004 | Outbreak in Gujarat State, India, CFR 78.3% among children, virus isolated |
| 2004-05 | Anti-CHPV neutralizing antibodies (NAbs) in 65.3% sera CHPV was isolated |
| 2005-2006 | Andhra Pradesh Hospital-based surveillance, about 54.4% CFR |
| 2007-2008 | Investigation in Nagpur Maharashtra, CDR 43.6%, viral RNA detected in sandflies from affected areas. |
| 2008 | CHPV activity in Maharashtra RNA was detected in two pools of sand flies |
| 2009 | Andhra Pradesh investigations on hospitalized encephalitis cases CHPV infection in 8/10 by RT-PCR and while only one of the 132 contact sera collected in Hyderabad region 1 showed anti CHPV IgM abs. |
| 2010-11 | Panchamahal district Gujarat, from fever cases anti-CHPV IgM antibodies detected in 10.56% [n=587] sera. |
| 2012 | Encephalitis cases from Maharashtra and Gujarat states anti-CHPV IgM ELISA and RT-PCR confirmed 4.7% [n=130] sera |
| Till date | Presence of virus recorded from Indian subcontinent [India, Bhutan, Sri Lanka and Nepal] and from African continent Nigeria, Senegal from hedgehogs. |