- Identification of protective Lassa virus epitopes that are restricted by HLA-A2. Botten, J., Alexander, J., Pasquetto, V., Sidney, J., Barrowman, P., Ting, J., Peters, B., Southwood, S., Stewart, B., Rodriguez-Carreno, M.P., Mothe, B., Whitton, J.L., Sette, A., Buchmeier, M.J. J. Virol. (2006)