Table 1.

Case definition of Nipah virus infection*

Case	Definition
Suspected NiV infection	Person from an area/locality affected by NiV outbreak who has  Acute fever with new onset of altered mental status or seizure and/or  Acute fever with severe headache and/or  Acute fever with cough or shortness of breath
Probable NiV infection	Suspected case - patients/s who resided in the same village where suspected/confirmed case of NiV infection were living during the outbreak period and who died before complete diagnostic specimens could be collected Suspected case who came in direct contact with confirmed case in a hospital setting during the outbreak period and who died before complete diagnostic specimens could be collected
Confirmed NiV infection	Suspected case who has laboratory confirmation of NiV infection either by  NiV RNA identified by PCR from respiratory secretions, blood, urine, or cerebrospinal fluid  Isolation of NiV from respiratory secretions , blood, urine, or cerebrospinal fluid

*Adapted from NCDC interim guidelines 2018. NiV: Nipah virus, PCR: Polymerase chain reaction, NCDC: National Centre for Disease Control