scholarly journals Knowledge, Attitudes, and Risk Perception Toward Avian Influenza Virus Exposure Among Cuban Hunters

2021 ◽  
Vol 9 ◽  
Author(s):  
Beatriz Delgado-Hernández ◽  
Lourdes Mugica ◽  
Martin Acosta ◽  
Frank Pérez ◽  
Damarys de las Nieves Montano ◽  
...  
Keyword(s):  
Risk Perception ◽  
Avian Influenza ◽  
Significant Risk ◽  
Domestic Animals ◽  
Influenza Viruses ◽  
Protective Measures ◽  
Flu Vaccine ◽  
Risks Factors ◽  
Virus Exposure ◽  
At Home

A critical step for decreasing zoonotic disease threats is to have a good understanding of the associated risks. Hunters frequently handle potentially infected birds, so they are more at risk of being exposed to zoonotic avian pathogens, including avian influenza viruses (AIVs). The objective of the current study was to gain a better understanding of Cuban hunters' general hunting practices, focusing on their knowledge and risk perception on avian influenza. An anonymous and voluntary semi-structured questionnaire was designed and applied to 398 hunters. Multiple correspondence analyses found relationships with potential exposure of AIVs to people and domestic animals. The main associated risks factors identified were not taking the annual flu vaccine (60.1%) and not cleaning hunting knives (26.3%); Direct contact with water (32.1%), cleaning wild birds at home (33.2%); receiving assistance during bird cleaning (41.9%), keeping poultry at home (56.5%) and feeding domestic animals with wild bird leftovers (30.3%) were also identified as significant risk factors. The lack of use of some protective measures reported by hunters had no relationship with their awareness on avian influenza, which may imply a lack of such knowledge. The results evidenced that more effective risk communication strategies about the consequences of AIVs infecting human or other animals, and the importance of reducing such risks, are urgently needed.

Avian biology, the human influence on global avian influenza transmission, and performing surveillance in wild birds

2010 ◽  
Vol 11 (1) ◽  
pp. 35-41 ◽  
Author(s):  
Samantha E. J. Gibbs
Keyword(s):  
Avian Influenza ◽  
Disease Transmission ◽  
Significant Risk ◽  
Lessons Learned ◽  
Wild Birds ◽  
Influenza Viruses ◽  
Influenza Surveillance ◽  
Future Research ◽  
Avian Host ◽  
Outbreak Response

AbstractThis paper takes a closer look at three interrelated areas of study: avian host biology, the role of human activities in virus transmission, and the surveillance activities centered on avian influenza in wild birds. There are few ecosystems in which birds are not found. Correspondingly, avian influenza viruses are equally global in distribution, relying on competent avian hosts. The immune systems, annual cycles, feeding behaviors, and migration patterns of these hosts influence the ecology of the disease. Decreased biodiversity has also been linked to heightened disease transmission in several disease systems, and it is evident that active destruction and modification of wetland environments for human use is impacting avian populations drastically. Legal and illegal trade in wild birds present a significant risk for introduction and maintenance of exotic diseases. After the emergence of HPAI H5N1 in Hong Kong in 1996 and the ensuing geographic spread of outbreaks after 2003, both infected countries and those at risk of introduction began intensifying avian influenza surveillance efforts. Several techniques for sampling wild birds for influenza viruses have been applied. Benefits, problems, and biases exist for each method. The wild bird avian influenza surveillance programs taking place across the continents are now scaling back due to the rise of other spending priorities; hopefully the lessons learned from this work will be preserved and will inform future research and disease outbreak response priorities.

scholarly journals Genetic Characteristics of Avian Influenza Virus Isolated from Wild Birds in South Korea, 2019–2020

Viruses ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 381
Author(s):  
Eun-Jee Na ◽  
Young-Sik Kim ◽  
Sook-Young Lee ◽  
Yoon-Ji Kim ◽  
Jun-Soo Park ◽  
...  
Keyword(s):  
Avian Influenza ◽  
South Korea ◽  
Basic Amino Acid ◽  
Histopathological Change ◽  
Amino Acid Sequences ◽  
Wild Birds ◽  
Influenza Viruses ◽  
Economic Losses ◽  
Active Monitoring ◽  
Genetic Characteristics

Wild aquatic birds, a natural reservoir of avian influenza viruses (AIVs), transmit AIVs to poultry farms, causing huge economic losses. Therefore, the prevalence and genetic characteristics of AIVs isolated from wild birds in South Korea from October 2019 to March 2020 were investigated and analyzed. Fresh avian fecal samples (3256) were collected by active monitoring of 11 wild bird habitats. Twenty-eight AIVs were isolated. Seven HA and eight NA subtypes were identified. All AIV hosts were Anseriformes species. The HA cleavage site of 20 representative AIVs was encoded by non-multi-basic amino acid sequences. Phylogenetic analysis of the eight segment genes of the AIVs showed that most genes clustered within the Eurasian lineage. However, the HA gene of H10 viruses and NS gene of four viruses clustered within the American lineage, indicating intercontinental reassortment of AIVs. Representative viruses likely to infect mammals were selected and evaluated for pathogenicity in mice. JB21-58 (H5N3), JB42-93 (H9N2), and JB32-81 (H11N2) were isolated from the lungs, but JB31-69 (H11N9) was not isolated from the lungs until the end of the experiment at 14 dpi. None of infected mice showed clinical sign and histopathological change in the lung. In addition, viral antigens were not detected in lungs of all mice at 14 dpi. These data suggest that LPAIVs derived from wild birds are unlikely to be transmitted to mammals. However, because LPAIVs can reportedly infect mammals, including humans, continuous surveillance and monitoring of AIVs are necessary, despite their low pathogenicity.

scholarly journals Highly Pathogenic Avian Influenza Viruses at the Wild–Domestic Bird Interface in Europe: Future Directions for Research and Surveillance

Viruses ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 212
Author(s):  
Josanne H. Verhagen ◽  
Ron A. M. Fouchier ◽  
Nicola Lewis
Keyword(s):  
Avian Influenza ◽  
Highly Pathogenic Avian Influenza ◽  
Wild Birds ◽  
Influenza Viruses ◽  
Highly Pathogenic ◽  
Future Directions ◽  
Pathogenic Avian Influenza ◽  
Domestic Bird ◽  
Hpai H5n1 ◽  
Host Identification

Highly pathogenic avian influenza (HPAI) outbreaks in wild birds and poultry are no longer a rare phenomenon in Europe. In the past 15 years, HPAI outbreaks—in particular those caused by H5 viruses derived from the A/Goose/Guangdong/1/1996 lineage that emerged in southeast Asia in 1996—have been occuring with increasing frequency in Europe. Between 2005 and 2020, at least ten HPAI H5 incursions were identified in Europe resulting in mass mortalities among poultry and wild birds. Until 2009, the HPAI H5 virus outbreaks in Europe were caused by HPAI H5N1 clade 2.2 viruses, while from 2014 onwards HPAI H5 clade 2.3.4.4 viruses dominated outbreaks, with abundant genetic reassortments yielding subtypes H5N1, H5N2, H5N3, H5N4, H5N5, H5N6 and H5N8. The majority of HPAI H5 virus detections in wild and domestic birds within Europe coincide with southwest/westward fall migration and large local waterbird aggregations during wintering. In this review we provide an overview of HPAI H5 virus epidemiology, ecology and evolution at the interface between poultry and wild birds based on 15 years of avian influenza virus surveillance in Europe, and assess future directions for HPAI virus research and surveillance, including the integration of whole genome sequencing, host identification and avian ecology into risk-based surveillance and analyses.

One-step fast and label-free imaging array for multiplexed detection of trace avian influenza viruses

2021 ◽  
pp. 338645
Author(s):  
Dagang Jiang ◽  
Yafei Tian ◽  
Yujiao Zhang ◽  
Xueyun Lu ◽  
Dan Xiao ◽  
...  
Keyword(s):  
Avian Influenza ◽  
Influenza Viruses ◽  
Label Free ◽  
Avian Influenza Viruses ◽  
Multiplexed Detection ◽  
Imaging Array ◽  
One Step

scholarly journals Markers of disease severity and positive family history are associated to significant risk perception in rheumatoid arthritis, while compliance with therapy is not: a cross-sectional study in 415 Mexican outpatients

2021 ◽  
Vol 23 (1) ◽  
Author(s):  
Irazú Contreras-Yáñez ◽  
Pilar Lavielle ◽  
Patricia Clark ◽  
Virginia Pascual-Ramos
Keyword(s):  
Rheumatoid Arthritis ◽  
Regression Analysis ◽  
Risk Perception ◽  
Family History ◽  
Disease Activity ◽  
Short Form ◽  
Demographic Data ◽  
Multiple Logistic Regression Analysis ◽  
Positive Family History ◽  
Significant Risk

Abstract Background Assessing risk perception (RP) helps explain how rheumatoid arthritis (RA) patients integrate their ideas concerning the disease and how this understanding affects their self-care management. Compliance with treatment impacts disease-related outcomes and could be associated with RP to variable degrees and at different levels. The primary objective was to determine a potential association between RP and compliance with therapy in RA outpatients and to identify additional factors. The secondary objective was to identify factors associated with judgment bias such as unrealistic RP. Patients and methods Between January 2018 and June 2019, 450 consecutive outpatients who received RA-related treatment were invited to a face-to-face interview to obtain socio-demographic data, RA-related information, comorbidities, and the following outcomes: adherence, persistence, and concordance with medications assessed with a questionnaire locally designed; RP with the RP questionnaire (RPQ); disease activity with the Routine Assessment of Patient Index Data-3 (RAPID-3); disability with the Health Assessment Questionnaire Disability Index (HAQ-DI); quality of life with Medical Outcomes Study Short Form-36 (SF-36) instrument; pain and overall disease with the respective visual analogue scale (VAS); and health literacy assessed with 3 questions. Significant RP was defined according to a cut-off based on the 75th percentile value of the sample in which the RPQ was validated. Unrealistic RP was defined based on the coincidence of the presence/absence of significant RP and less/more than 7 unfavorable medical criteria. Multiple logistic regression analysis was used. Patients provided written informed consent and the study received Internal Review Board approval. Results There were 415 patients included, primarily middle-aged women with long-standing disease and moderate disease activity. Almost half of the patients were receiving corticosteroids and 15.9% intensive RA-related treatment. There were 44.1% of the patients concordant with treatment and 22.6% had significant RP. The patients’ treatment behavior was not retained in the regression analysis; meanwhile, rheumatoid nodes, surgical joint replacement, family history of RA, and higher RAPID-3 score were associated with significant RP. There were 56 patients with unrealistic RP; significant RP and more unfavorable medical criteria were associated with unrealistic RP. Conclusions Compliance with therapy was not associated with significant RP in RA outpatients.

scholarly journals Antibodies to Highly Pathogenic A/H5Nx (Clade 2.3.4.4) Influenza Viruses in the Sera of Vietnamese Residents

Pathogens ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 394
Author(s):  
Tatyana Ilyicheva ◽  
Vasily Marchenko ◽  
Olga Pyankova ◽  
Anastasia Moiseeva ◽  
Tran Thi Nhai ◽  
...  
Keyword(s):  
Influenza Virus ◽  
Avian Influenza ◽  
Wide Spectrum ◽  
Influenza Viruses ◽  
Serum Samples ◽  
Socialist Republic ◽  
Highly Pathogenic ◽  
Virus Variant ◽  
Human Sera ◽  
Hemagglutinin Inhibition

To cause a pandemic, an influenza virus has to overcome two main barriers. First, the virus has to be antigenically new to humans. Second, the virus has to be directly transmitted from humans to humans. Thus, if the avian influenza virus is able to pass the second barrier, it could cause a pandemic, since there is no immunity to avian influenza in the human population. To determine whether the adaptation process is ongoing, analyses of human sera could be conducted in populations inhabiting regions where pandemic virus variant emergence is highly possible. This study aimed to analyze the sera of Vietnamese residents using hemagglutinin inhibition reaction (HI) and microneutralization (MN) with A/H5Nx (clade 2.3.4.4) influenza viruses isolated in Vietnam and the Russian Federation in 2017–2018. In this study, we used sera from 295 residents of the Socialist Republic of Vietnam collected from three groups: 52 samples were collected from households in Nam Dinh province, where poultry deaths have been reported (2017); 96 (2017) and 147 (2018) samples were collected from patients with somatic but not infectious diseases in Hanoi. In all, 65 serum samples were positive for HI, at least to one H5 virus used in the study. In MN, 47 serum samples neutralizing one or two viruses at dilutions of 1/40 or higher were identified. We postulate that the rapidly evolving A/H5Nx (clade 2.3.4.4) influenza virus is possibly gradually adapting to the human host, insofar as healthy individuals have antibodies to a wide spectrum of variants of that subtype.

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