The present invention relates to a nucleic acid construct that encodes, in this order, a first Swine influenza A (IAV-S) hemagglutinin (HA) antigen of the Scot/94 lineage and a second Swine influenza A (IAV-S) hemagglutinin (HA) antigen of the Eurasian avian-like (EA) lineage, and a nucleic acid construct that encodes, in this order, a first IAV-S HA antigen of the Gent/84 lineage and a second IAV-S HA antigen of pandemic09 (pdm09) lineage. In other embodiments, the present invention relates to RNA replicon particles comprising one or both nucleic acid constructs, an immunogenic composition, such as a vaccine, which may be used against influenza A virus infections, and comprising the replicon particles. Further provided are methods of making the vaccine and use of the vaccine.