Abstract
We conducted a serosurvey of 155 healthcare workers and 124 household and community members who had close contact with 18 patients who had laboratory-confirmed Nipah virus infections in Kerala, India. We detected 3 subclinical infections; 2 persons had IgM and IgG and 1 only IgM against Nipah virus.
Highlights
We conducted a serosurvey of 155 healthcare workers and 124 household and community members who had close contact with 18 patients who had laboratory-confirmed Nipah virus infections in Kerala, India
Nipah virus (NiV) is known to cause subclinical infections, the extent of these infections among close contacts varies during outbreaks
No subclinical infections have been reported from outbreaks in Bangladesh [11], but 1%–15% of infections were subclinical during outbreaks in Malaysia [12,13,14,15]
Summary
We conducted a serosurvey of 155 healthcare workers and 124 household and community members who had close contact with 18 patients who had laboratory-confirmed Nipah virus infections in Kerala, India. The initial case-patient was hospitalized on May 3, 2018, but his blood sample could not be collected for laboratory confirmation of NiV. Sixteen patients with laboratory-confirmed NiV infection died (casefatality rate 89%). As part of contact tracing, district health authorities identified ≈2,600 contacts of laboratory-confirmed NiV patients.
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