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Malirat V, Caldevilla C, Cardillo S, Espinoza AM, Novo SG, Taffarel A, Benito MB, Bergmann IE. Broad immunogenic spectrum of monovalent and trivalent foot-and-mouth disease virus vaccines containing O 1 campos, A24 cruzeiro and A Argentina 2001 strains against circulating viral lineages in cattle and pigs. Vaccine 2023; 41:5782-5790. [PMID: 37574343 DOI: 10.1016/j.vaccine.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/03/2023] [Accepted: 08/03/2023] [Indexed: 08/15/2023]
Abstract
FMD remains endemic in many Asian and African countries where multiple variants of serotypes O and A, among others, currently circulate. Due to lack of cross-protection between serotypes and incomplete protection between some strains even within a serotype, an important challenge for the application of effective vaccination programs is to select highly immunogenic and widely cross-reactive vaccine strains. Adaptation of a candidate field virus for use as a vaccine can be quite complex, so that whenever possible, the use of well-established vaccine viruses could have enormous advantages. FMD vaccine strains harmonized for use in South America have shown excellent results in FMD control, not only in the region, where it is still used systematically as a preventive measure, but also more recently in some Asian countries. To gain further insight into the immunogenic spectrum of these strains, VN tests (VNT) were performed with sera from cattle and/or pigs vaccinated with monovalent (type O) or trivalent (types O and A) formulations against 122 type O and 32 type A field viruses isolated from 35 countries in Asia and Africa, belonging to different lineages. Almost all VNT titers obtained were within the expected protective level, indicating the wide immunogenic spectrum of high potency FMD vaccines formulated with O1 Campos, A24 Cruzeiro and A Argentina 2001 South American vaccine strains belonging to EURO-SA topotypes against currently active viruses from other topotypes. These in vitro results are in line with previously reported in vivo challenge tests in pigs against three A/ASIA/Sea-97 isolates and two isolates belonging to type O lineages O/SEA/Mya-98 and O/ME-SA/Ind-2001e.
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Affiliation(s)
- Viviana Malirat
- Centro de Virología Humana y Animal (CEVHAN), CONICET-UAI, Av. Montes de Oca 745, CABA, Argentina
| | - Cecilia Caldevilla
- Biogénesis Bagó S.A., Ruta Panamericana Km 38,5, (B1619IEA), Garín, Provincia de Buenos Aires, Argentina
| | - Sabrina Cardillo
- Biogénesis Bagó S.A., Ruta Panamericana Km 38,5, (B1619IEA), Garín, Provincia de Buenos Aires, Argentina
| | - Ana María Espinoza
- Biogénesis Bagó S.A., Ruta Panamericana Km 38,5, (B1619IEA), Garín, Provincia de Buenos Aires, Argentina
| | - Sabrina Galdo Novo
- Servicio Nacional de Sanidad y Calidad Agroalimentaria (SENASA), Talcahuano 1660, CP 1640 Martínez, Argentina
| | - Ana Taffarel
- Servicio Nacional de Sanidad y Calidad Agroalimentaria (SENASA), Talcahuano 1660, CP 1640 Martínez, Argentina
| | - Melanie Barrios Benito
- Servicio Nacional de Sanidad y Calidad Agroalimentaria (SENASA), Talcahuano 1660, CP 1640 Martínez, Argentina
| | - Ingrid E Bergmann
- Centro de Virología Humana y Animal (CEVHAN), CONICET-UAI, Av. Montes de Oca 745, CABA, Argentina.
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