Townsend MB, Gallardo-Romero NF, Khmaladze E, Vora NM, Maghlakelidze G, Geleishvili M, Carroll DS, Emerson GL, Reynolds MG, Satheshkumar PS. Retrospective Proteomic Analysis of Serum After
Akhmeta Virus Infection: New Suspect Case Identification and Insights Into Poxvirus Humoral Immunity.
J Infect Dis 2017;
216:1505-1512. [PMID:
29029254 PMCID:
PMC10863730 DOI:
10.1093/infdis/jix534]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 09/29/2017] [Indexed: 11/12/2022] Open
Abstract
Serologic cross-reactivity, a hallmark of orthopoxvirus (OPXV) infection, makes species-specific diagnosis of infection difficult. In this study, we used a variola virus proteome microarray to characterize and differentiate antibody responses to nonvaccinia OPXV infections from smallpox vaccination. The profile of 2 case patients infected with newly discovered OPXV, Akhmeta virus, exhibited antibody responses of greater intensity and broader recognition of viral proteins and includes the B21/22 family glycoproteins not encoded by vaccinia virus strains used as vaccines. An additional case of Akhmeta virus, or nonvaccinia OPXV infection, was identified through community surveillance of individuals with no or uncertain history of vaccination and no recent infection. The results demonstrate the utility of microarrays for high-resolution mapping of antibody response to determine the nature of OPXV exposure.
Collapse