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2.
BMC Public Health ; 21(1): 664, 2021 04 07.
Article in English | MEDLINE | ID: mdl-33827489

ABSTRACT

BACKGROUND: Dengue is a mosquito-borne flavivirus present in many metropolitan cities of tropical countries. METHODS: During and after the dengue season (September 2018 to January 2019), we conducted a case-control study in order to determine the risk factors for dengue fever in Hanoi city, Vietnam. 98 dengue patients and 99 patients with other acute infections, such as Hepatitis B virus infection, were recruited at Department of Infectious Disease of Bach Mai national hospital in Hanoi. Patients were interviewed using a structured questionnaire covering demographic, housing, environmental factors and knowledge, attitude, and practice on dengue prevention and control. Univariate analysis and multivariable logistic regression were used to determine the risk factors of dengue status. RESULTS: The mean score of knowledge items and practice items was only 7.9 out of total 19 points and 3.9 out of total 17 points, respectively. While the mean score of attitude items was 4.8 out of total 6 points. Multivariable logistic regression indicated that older patients had lesser risk of getting dengue infection as compared to younger adults aged 16-30, and patients living in peri-urban districts were less likely to suffer of dengue fever than patients living in central urban districts (OR = 0.31; 95% CI 0.13-0.75). This study could not find any association with occupation, water storage habit, knowledge, attitude, or practice on dengue prevention. CONCLUSIONS: All patients had a relatively low level of knowledge and practice on dengue prevention and control. However, the attitude of the participants was good. We found that age group and living district were the risk factors correlated with the dengue status. Communication programs on raising dengue awareness should be repeated all year round and target particular groups of adolescents, younger adults, landlords and migrants from other provinces to improve their knowledge and encourage them to implement preventive measures against dengue fever.


Subject(s)
Dengue , Adolescent , Adult , Animals , Case-Control Studies , Cities , Dengue/epidemiology , Dengue/prevention & control , Health Knowledge, Attitudes, Practice , Humans , Risk Factors , Vietnam/epidemiology , Young Adult
3.
Emerg Infect Dis ; 24(5): 879-882, 2018 05.
Article in English | MEDLINE | ID: mdl-29664386

ABSTRACT

Alkhurma hemorrhagic fever virus RNA was detected in immature Hyalomma rufipes ticks infesting northward migratory birds caught in the North Mediterranean Basin. This finding suggests a role for birds in the ecology of the Alkhurma hemorrhagic fever virus and a potential mechanism for dissemination to novel regions. Increased surveillance is warranted.


Subject(s)
Bird Diseases/parasitology , Encephalitis Viruses, Tick-Borne/isolation & purification , Ixodidae/virology , RNA, Viral/isolation & purification , Tick Infestations/veterinary , Animal Migration , Animals , Bird Diseases/epidemiology , Greece , Italy , Seasons
5.
Article in English | MEDLINE | ID: mdl-22957116

ABSTRACT

Bartonella spp. infections are considered to be vector-borne zoonoses; ticks are suspected vectors of bartonellae. Migratory birds can disperse ticks infected with zoonotic pathogens such as Rickettsia and tick-borne encephalitis virus and possibly also Bartonella. Thus, in the present study 386 tick specimens collected in spring 2009 from migratory birds on the Mediterranean islands Capri and Antikythera were screened for Bartonella spp. RNA. One or more ticks were found on 2.7% of the birds. Most ticks were Hyalomma rufipes nymphs and larvae with mean infestation rates of 1.7 nymphs and 0.6 larvae per infested bird. Bartonella spp. RNA was not detected in any of the tick specimens.

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