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P Senthamarai Selvan, A Jebanesan, D Reetha
The distribution and abundance of various mosquito vectors is important in the determination of disease prevalence in disease endemic areas. The aim of the present study was to conduct regular entomological surveillance and to determine the relative abundance of tree hole mosquito species in Tamilnadu, India. In addition to this, the impact of weather-conditions on tree hole mosquito population were evaluated between June, 2014 and May, 2015. Six hills ranges viz., Anaimalai hills, Kodaikanal hills, Sitheri hills, Kolli hills, Yercaud hills, and Megamalai were selected, the immatures collected from tree holes by the help of suction tube...
July 2016: Acta Tropica
Hussin A Rothan, Hirbod Bahrani, Ammar Y Abdulrahman, Zulqarnain Mohamed, Teow Chong Teoh, Shatrah Othman, Nurshamimi Nor Rashid, Noorsaadah A Rahman, Rohana Yusof
Chikungunya virus (CHIKV) infection is a persistent problem worldwide due to efficient adaptation of the viral vectors, Aedes aegypti and Aedes albopictus mosquitoes. Therefore, the absence of effective anti-CHIKV drugs to combat chikungunya outbreaks often leads to a significant impact on public health care. In this study, we investigated the antiviral activity of drugs that are used to alleviate infection symptoms, namely, the non-steroidal anti-inflammatory drugs (NSAIDs), on the premise that active compounds with potential antiviral and anti-inflammatory activities could be directly subjected for human use to treat CHIKV infections...
March 2016: Antiviral Research
Juan M de la Hoz, Brayan Bayona, Samir Viloria, José L Accini, Homero San Juan-Vergara, Diego Viasus
Although Chikungunya infection is emerging as an important public health problem in many countries, it is not regarded as a life-threatening disease. Information dealing with fatal cases is scarce. We herein describe three patients with Chickungunya infection who presented with multiple organ failure and died within 24h of admission. Two cases had positive anti-dengue IgM, but dengue coinfection was rejected based on the clinical features and results of real-time reverse transcription polymerase chain reaction...
August 2015: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
Jeong-Hwan Hwang, Chang-Seop Lee
Chikungunya is caused by an arbovirus transmitted by Aedes mosquito vector. With the increase of habitat of mosquito by global warming and frequent international travel and interchange, chikungunya reemerged and showed global distribution recently. Until now there has not been reported any case infected with chikungunya virus in Korea. A 23-year-old man has been the Republic of the Philippines for 1 week, and visited our emergency center due to fever and back pain. Chikungunya viral infection was diagnosed by specific IgM for chickungunya virus by enzyme-linked immunosorbent assayin Korea Centers for Disease Control and Prevention...
March 2015: Infection & Chemotherapy
Ellen Koenig
No abstract text is available yet for this article.
October 2014: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
Dominic A Travis, P Sriramarao, Carol Cardona, Clifford J Steer, Shaun Kennedy, Srinand Sreevatsan, Michael P Murtaugh
Characterizing the health consequences of interactions among animals, humans, and the environment in the face of climatic change, environmental disturbance, and expanding human populations is a critical global challenge in today's world. Exchange of interdisciplinary knowledge in basic and applied sciences and medicine that includes scientists, health professionals, key sponsors, and policy experts revealed that relevant case studies of monkeypox, influenza A, tuberculosis, and HIV can be used to guide strategies for anticipating and responding to new disease threats such as the Ebola and Chickungunya viruses, as well as to improve programs to control existing zoonotic diseases, including tuberculosis...
December 2014: Annals of the New York Academy of Sciences
Tapan K Barik, Raghavendra Kamaraju, Arunava Gowswami
Presently, there is a need for increased efforts to develop newer and effective methods to control mosquito vectors as the existing chemical and biological methods are not as effective as in earlier period owing to different technical and operational reasons. The use of nanomaterial products in various sectors of science including health increased during the last decade. We tested three types of nanosilica, namely lipophilic, hydrophilic and hydrophobic, to assess their larvicidal, pupicidal and growth inhibitor properties and also their influence on oviposition behaviour (attraction/deterrence) of mosquito species that transmit human diseases, namely malaria (Anopheles), yellow fever, chickungunya and dengue (Aedes), lymphatic filariasis and encephalitis (Culex and Aedes)...
September 2012: Parasitology Research
Philip M Armstrong, Theodore G Andreadis, Shannon L Finan, John J Shepard, Michael C Thomas
Mosquitoes transmit a number of distinct viruses including important human pathogens such as West Nile virus, dengue virus, and chickungunya virus. Many of these viruses have intensified in their endemic ranges and expanded to new territories, necessitating effective surveillance and control programs to respond to these threats. One strategy to monitor virus activity involves collecting large numbers of mosquitoes from endemic sites and testing them for viral infection. In this article, we describe how to handle, process, and screen field-collected mosquitoes for infectious virus by Vero cell culture assay...
2011: Journal of Visualized Experiments: JoVE
Girija Subramaniam, Karthikeyan Kaliaperumal, Jeyakumari Duraipandian, Gopal Rengasamy
A 19-year-old male was admitted to the medical ward with complaints of fever and swelling of the ankle and wrist joints of about two weeks duration. The patient developed hyperkeratotic lesions of the skin over the hands, elbow and back about three weeks after admission. Antistreptolysin O, rheumatoid factor, and Widal tests as well as Chickungunya, brucella, HIV and antinuclear antibodies were negative. Culture of blood sample and pus aspirate from the ankle and chest yielded a pure growth of Staphylococcus epidermidis...
May 2010: Journal of Infection in Developing Countries
Richard Traineau, Marie-Hélène Elghouzzi, Philippe Bierling
Many infectious diseases are transmissible by blood transfusion but the overall risk of transfusion transmitted infections is very low through the combination of restrictive donor selection and increasingly sensitive screening. The noninfectious risks (hemolytic transfusion reactions, circulatory overload, transfusion related lung injury) are higher than the current infectious risks. Bacterial contamination of blood components remains the most frequent infectious risk from transfusion but are constantly declining...
January 20, 2009: La Revue du Praticien
Philippe Buchy, Van Luong Vo, Khanh Toan Bui, Thi Xuan Mai Trinh, Philippe Glaziou, Thi Thu Ha Le, Viet Lo Le, Trong Chien Bui
This study was designated to describe clinical and biological features of patients with a suspected diagnosis of dengue fever/dengue hemorrhagic fever during an outbreak in Central Vietnam. One hundred and twenty-five consecutive patients hospitalized at Khanh Hoa and Binh Thuan Provincial hospitals between November 2001 and January 2002 with a diagnosis of suspected dengue infection were included in the present study. Viruses were isolated in C6/36 and VERO E6 cell cultures or detected by RT-PCR. A hemagglutination-inhibition test (HI) was done on each paired sera using dengue antigens type 1-4, Japanese encephalitis (JE) virus antigen, Chickungunya virus antigen and Sindbis virus antigen...
January 2005: Southeast Asian Journal of Tropical Medicine and Public Health
F N Reĭzin, V M Roĭkhel', M P Chumakov
The effect of theophylline and adrenaline on the synthesis of interferon induced by the influenza B virus, strain Lee, in a chick embryo tissue culture was studied. Both preparation were found to decrease interferon synthesis when 5-day-old cultures were used; the inhibitory effect was increased when the two drugs were used together. The degree of inhibition of interferon production depended on a dose of the preparation; the inhibition was still present even when the drugs ere introduced several hours after the cells were infected with interferonogen...
June 1975: Biulleten' Eksperimental'noĭ Biologii i Meditsiny
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