Clinical relevance of Zika symptoms in the context of a Zika Dengue epidemic.

BACKGROUND

The clinical characteristics of the most frequent arbovirosis (Dengue, Zika, Chikungunya) are very similar, which is a diagnostic challenge for clinicians.

OBJECTIVE

To identify the presence of clinical characteristics related to Zika virus infection confirmed by the laboratory in patients during an epidemic of co-infection with Zika and Dengue viruses.

METHOD: Cross-sectional descriptive study of patients with clinical - epidemiological suspicion of Zika virus infection, who were admitted in the Hospital "Joaquín Albarrán" (La Habana, Cuba), during June 1 to October 31 of 2017. Demographic and symptoms and signs were recorded. By PCR for Zika virus (in blood or urine) the disease was confirmed.

RESULTS

1541 patients were studied. The most frequent symptoms and signs were rash (93.8%), pruritus (77.9%), arthralgia (60.0%), headache (50.8%), myalgia (46.1%), fever (34.7%), asthenia (31.7%), and conjunctivitis (27.9%). Zika virus infection was confirmed in 279 patients (18.1%). Greater frequency of arthralgia, asthenia, and diarrhea was demonstrated in Zika confirmed patients.

CONCLUSION

Minor clinical relevance was observed in the symptoms or signs of arboviral disease to support the clinical diagnosis of Zika virus infections by clinician during a Zika-Dengue epidemic. The assessment of the temporality of the onset of Zika and Dengue symptoms of these infections is recommended to assist clinicians in the differential diagnosis.