Just returned from the codeshare Qantas/Kenya airways Sydney to Nairobi via Bangkok. Heads up for any persons getting off at Bangkok on the way back. They do not advise on the plane that you must go through a health check before proceeding to immigration and the immigration offices do not speak very good english just send you away. An hour lost trying to get assistance at Bangkok airport. So on arrival have your arrival cards filled out and your yellow fever cards ready go straight to the health check desk and have your entry card stamped before proceeding to immigration. Hope this helps.