What do dengue, Zika virus, Chikungunya fever, and West Nile fever have in common? arbovirusThese diseases, common in endemic areas of America, Africa, and Asia, have reached Catalonia in recent years mainly due to intercontinental travelers and the presence of the tiger mosquito and the common mosquito. If a case is suspected by a doctor, the Department of Health recommends taking extreme precautions. avoid the bite of these insects for two weeks after the first symptoms appear.