Yel­low Fever

Australian Health Today - - Aht Travel -

Symp­toms

Yel­low fever is a vi­ral in­fec­tion trans­mit­ted by mos­qui­toes. In­fec­tion can lead to two dis­tinct phases of dis­ease.

The first phase re­sults in:

• fever

• mus­cle pain

• headache

• nau­sea and vom­it­ing.

Pa­tients of­ten re­cover af­ter 3 to 4 days. Some pa­tients will en­ter a more se­ri­ous, toxic phase where the fever re­turns, jaun­dice oc­curs and blood ap­pears in the vomit. The toxic phase may be fa­tal if not treated ap­pro­pri­ately.

Pre­ven­tion

Vac­ci­na­tion is the most ef­fec­tive form of pre­ven­tion against yel­low fever, and is rec­om­mended for peo­ple aged 9 months and older who travel to ar­eas where there is a risk of in­fec­tion. A sin­gle dose pro­vides life­long im­mu­nity. It is very im­por­tant to speak to your travel GP at least 6 weeks be­fore trav­el­ling overseas to see if you need a yel­low fever vac­cine. Once in­fected, there is no spe­cific treat­ment for the dis­ease. Most coun­tries have reg­u­la­tions and re­quire­ments re­gard­ing the need for yel­low fever vac­ci­na­tion. If you have vis­ited ar­eas where the dis­ease is en­demic, a Yel­low Fever In­ter­na­tional Cer­tifi­cate of Vac­ci­na­tion may be re­quired in or­der to en­ter other coun­tries and to re-en­ter Aus­tralia.

Risk re­gions

Yel­low fever oc­curs pre­dom­i­nantly in re­gions of South and Cen­tral Amer­ica and West and Cen­tral Africa.

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