Via ReliefWeb, a report from the IFRC: El Salvador: Chikungunya and dengue fever outbreak Emergency Plan of Action (EPoA) Operation n° MDRSV007. Click through to download the 16-page PDF. Excerpt from the situation analysis:
El Salvador is the first country in Central America with a chikungunya outbreak. Several cases of fever and particular clinical symptoms have appeared since early June 2014 in the municipality of Axutuxtepeque in the Department of San Salvador. Given the situation, the Ministry of Health determined that the clinical picture of patients corresponded to chikungunya virus.
According to Ministry of Health data to date, 1,300 suspected cases have been reported, distributed over 6 departments and 20 municipalities, with the possibility of spreading to the rest of the country due to the population's high susceptibility to this disease, as they have never come into contact before with the virus. Suspected cases are clinically established and samples were sent to the Center for Disease Control (CDC) in the United States, where samples studied have been confirmed as positive.
On 18 June, the Ministry of Health, through the Directorate-General for Civil Protection, established a stratified Yellow Alert due to the growing number of cases of chikungunya and dengue fever in the country.