Abstract: Provided herein is a leukocyte tyrosine kinase (LTK) inhibitor for use in the treatment of a viral infection in a subject, wherein the viral infection is caused by an RNA virus. Also provided are methods of treating a viral infection in a subject, wherein the viral infection is caused by an RNA virus, the method comprising administering to the subject an LTK inhibitor, and the use of an LTK inhibitor in the manufacture of a medicament for the treatment of a viral infection, wherein the viral infection is caused by an RNA virus. In particular, the infection may be an influenza or coronavirus infection in a human subject.

Abstract: Provided herein is technology relating to vaccines and particularly, but not exclusively, to compositions, methods, and uses of a mixture of immunogenic vaccine molecules comprising components for targeting the dimeric vaccine molecules to antigen-presenting cells and components for eliciting an immunogenic response, wherein the components for eliciting an immunogenic response preferably comprise at least three variants of an immunogenic protein, such as variants of immunogenic proteins obtained from three or more different strains of a pathogenic organism.