1793 Philadelphia yellow fever epidemic while rejecting his etiology of the disease. Others deprecated his therapies, such as Dr. Deveze, but agreed that the fever had local origins. Deveze had arrived on the refugee ship from Saint-Domingue which many accused of having carried the disease, but he thought it healthy. The doctors did not understand the origin or transmittal of the disease. Historians believe it was brought by refugees from Saint-Domingue, where it was endemic, and transmitted by mosquitoes between the infected and healthy persons. Dr. Kuhn advised drinking wine, "at first weaker wines, such as claret and Rhenish; if these cannot be had, Lisbon
Yellow fever vaccine It should not be given to those with very poor immune function. Yellow fever vaccine came into use in 1938. It is on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system. The wholesale price in the developing world is between US$4.30 and US$21.30 per dose as of 2014. In the United States it costs between US$50 and US$100. The vaccine is made from weakened yellow fever virus. Some countries require a yellow fever vaccination certificate before entry from a country where the disease is common. People most at risk