1. 1. Abel, B., Tameris, M., Mansoor, N., Gelderbloem, S., Hughes, J., Abrahams, D., Makhethe, L., Erasmus, M., de Kock, M., van der Merwe, L., Hawkridge, A., Veldsman, A., Hatherill, M., Schirru, G., Pau, M. G., Hendriks, J., Weverling, G. J., Goudsmit, J., Sizemore, D., McClain, J. B., Goetz, M., Gearhart, J., Mahomed, H., Hussey, G. D., Sadoff, J. C. and Hanekom, W. A. 2010. The novel tuberculosis vaccine, AERAS-402, induces robust and polyfunctional CD4+ and CD8+ T cells in adults. Am. J. Respir. Crit. Care Med. 181: 1407–1417.
2. 2. Adams, S. C., Xing, Z., Li, J. and Cardona, C. J. 2009. Immune-related gene expression in response to H11N9 low pathogenic avian influenza virus infection in chicken and Pekin duck peripheral blood mononuclear cells. Mol. Immunol. 46: 1744–1749.
3. 3. Arnal, A., Vittecoq, M., Pearce-Duvet, J., Gauthier-Clerc, M., Boulinier, T. and Jourdain, E. 2015. Laridae: A neglected reservoir that could play a major role in avian influenza virus epidemiological dynamics. Crit. Rev. Microbiol. 41: 508–519.
4. 4. Baker, K. 1993. Identification guide to European non-passerines, British Trust for Ornithology, Norfolk.
5. 5. Campbell, T. W. and Ellis, C. K. 1990. Avian and Exotic Animal Hematology and Cytology. pp. 11, 58. Wiley-Blackwell, Hoboken.