The high prevalence of infectious diseases among health workers indicates the need for improving surveillance

Abstract Objective: to estimate the seroprevalence of arboviruses, syphilis, HIV, and hepatitis B (HBV) in Healthcare Workers (HCW). Methods: a survey among HCW was randomly selected city Bahia-Brazil. The research used structured questionnaire, which collected sociodemographic, occupational, health information 2019. Rapid immunochromatographic tests were track infections. Thus, positive results for HBV indicated seropositivity respective infection. In addition, simultaneous detection antibodies zika (ZIKV) dengue (DENV) viruses flavivirus Results: total 453 included, 82.8% women. Most (55.1%) reported contact with biological material; 5.2% injuries material. 34.7% (95%CI:30.1-39.4) dengue, 1.7% (95%CI:0.7-3.4) zika, 9.9% (95%CI:7.2-13.2) chikungunya, 39.9% (95%CI:35.2-44.7) (ZIKV+DENV); 21.9% (95%CI:18.1-26.2) being negative all arboviruses. Seropositivity arboviruses increased age higher endemic disease control agents. Three tested (HBsAg); no HIV cases detected. Conclusion: high percentage exposed infectious agents (contact material and/or exposure arboviruses). Among necessary conditions preventing infections work environment, following stand out: monitoring diseases HCW, surveillance environments, measures occupational exposures, such as availability repellents.