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1.
An. bras. dermatol ; 90(2): 240-243, Mar-Apr/2015. graf
Article Dans Anglais | LILACS | ID: lil-741082

Résumé

Bed bugs are hematophagous insects which due to their morphological and biological characteristics are able to easily adapt themselves to human households. The authors describe two cases of dermatitis caused by bed bug bites in the city of Rio de Janeiro, Brazil. Patients presented linear lesions in the usual "breakfast, lunch and dinner" arrangement, suggesting this diagnosis. A visit to their dwellings showed infestation of insects identified as Cimex hemipterus. The knowledge of these insects by the dermatological community will contribute to an accurate diagnosis as well as subsidize the dissemination of information aiming for prevention.


Sujets)
Animaux , Humains , Mâle , Adulte d'âge moyen , Punaises des lits , Dermatite/étiologie , Dermatite/anatomopathologie , Morsures et piqûres d'insectes/complications , Brésil , Literie et linges/parasitologie , Peau/anatomopathologie
2.
Southeast Asian J Trop Med Public Health ; 2007 May; 38(3): 546-59
Article Dans Anglais | IMSEAR | ID: sea-35591

Résumé

Paulo Freire's theory was modified to empower a women's group in Chiang Mai Province, Thailand, to prevent and control malaria. This study conducted an intervention in Mueang Na Wan Village, Mueang Na Sub-district, Chiang Dao District, Chiang Mai Province, where 45 women were systematically recruited into the study cohort. Navail Village was selected as a control village because it resembled the intervention village. The empowerment program emphasized enhancement of malaria preventive levels, using insecticide-treated bed nets, self-esteem, and self confidence expectation to prevent and control malaria. Intensive training was conducted and activities performed among the women's group, with 10 participatory meetings in all. Data collection was conducted for the pre-test in month 1, and post-intervention in months 3, 6, 9, and 12. The qualitative methods used were focus-group discussions, non-participant observations, and in-depth interviews with housewives, their husbands, and youths at risk for malaria. The results showed that, post-intervention, there were significantly increased levels for malaria preventive behaviors, behaviors of using insecticide-treated nets, self-esteem, and self confidence expectations, in the intervention village compared with the control village. Insecticide-treated net usage and insecticide-treated net usage behaviors increased in the intervention village more than before and more than that in the control village. The women's group in the intervention village created the following plans, which were crucial to malaria prevention: (1) a family protection plan, (2) providing malaria education to community members, (3) a mosquito-control campaign, (4) scaling-up insecticide-impregnated bed nets, and (5) malaria control among foreign laborers. Finally, the empowered women's group performed sustainable activities. Between malaria-prevention activities, they conducted a joint program to raise income for their families.


Sujets)
Adolescent , Adulte , Literie et linges/parasitologie , Études de cohortes , Femelle , Promotion de la santé , Humains , Insecticides , Paludisme/traitement médicamenteux , Adulte d'âge moyen , Pouvoir psychologique , Évaluation de programme , Auto-efficacité , Thaïlande
3.
Rev. Inst. Med. Trop. Säo Paulo ; 48(3): 171-174, May-June 2006. ilus, tab
Article Dans Anglais | LILACS, SES-SP | ID: lil-431250

Résumé

O objetivo do presente estudo foi verificar a eficácia do acaricida maleato de estanho tri-n-butílico, aplicado industrialmente em amostras de carpetes, tecidos de revestimentos de móveis e de calçados, assim como de espumas de colchão. Aproximadamente 100 ácaros adultos da espécie Dermatophagoides pteronyssinus foram inoculados em placa de Petri contendo a amostra (pedaço de colchão, tecido ou carpete), tratada com o produto acaricida, coletados aleatoriamente. Foi acrescentado sobre a amostra, meio de cultivo para a manutenção dos ácaros. Cada placa foi examinada após 1, 2, 3, 7 e 30 dias de incubação a 25 ºC e 75% de U.R.A. (umidade relativa do ar), sob microscópio estereoscópico com 40X de aumento. O acaricida maleato de estanho tri-n-butílico apresentou 100% de eficácia acaricida após 30 dias da aplicação, em condições ótimas para a manutenção dos ácaros.


Sujets)
Animaux , Literie et linges/parasitologie , Dermatophagoides pteronyssinus , Sols et revêtements , Insecticides , Textiles/parasitologie , Trialkyl-stannanes , Reproductibilité des résultats
4.
Asian Pac J Allergy Immunol ; 2004 Mar; 22(1): 1-6
Article Dans Anglais | IMSEAR | ID: sea-36859

Résumé

The quantitative assays for house dust mite (HDM) allergens provide a valid index of exposure and can be used for risk evaluation. We assessed group I HDM allergen levels in mattress and living room floor dust from 35 Chiang Mai homes and identified factors associated with high allergen levels. One-third of mattress and living room floor dust had group I HDM allergen levels of between 2-10 microg/g. Two-thirds of mattress dust and a small amount of living room floor dust had group I HDM allergen levels of over 10 microg/g. The geometric means of Der p I, Der f I and total group I allergens in mattress and living room floor dust were 8.61, 2.88, and 15.81 microg/g and 1.61, 0.27 and 2.43 microg/g, respectively. Mattresses made of kapok and rugs kept in the living room were associated with high group I allergen levels.


Sujets)
Allergènes/effets indésirables , Antigènes de Dermatophagoides/effets indésirables , Asthme/immunologie , Literie et linges/parasitologie , Ceiba , Enfant , Études transversales , Poussière/analyse , Exposition environnementale/analyse , Sols et revêtements , Humains , Pyroglyphidae/immunologie , Rhinite spasmodique apériodique/immunologie , Risque , Thaïlande
5.
Southeast Asian J Trop Med Public Health ; 1997 Dec; 28(4): 851-6
Article Dans Anglais | IMSEAR | ID: sea-33769

Résumé

An operational trial of Vectron (Etofenprox, OMS 3002) was conducted in East Flores Regency, Nusa Tenggara Timur Province. The compound (Etofenprox 10EW) was applied as indoor residual spray and as an impregnation treatment for bednets in two separate areas. Dosage in both cases was 0.2 g/m2. A third area, designated as control, was untreated. In bioassay tests, bamboo surfaces gave 100% mortality for 150-160 days post spray, while wooden surfaces and treated bednets both gave complete mortality for at least 120 days. Malaria cases monitored by successive malariometric surveys showed steady declines in positivity rates, particularly in children.


Sujets)
Adolescent , Animaux , Literie et linges/parasitologie , Enfant , Femelle , Humains , Indonésie/épidémiologie , Insecticides/usage thérapeutique , Paludisme/épidémiologie , Mâle , Lutte contre les moustiques , Pyréthrines/usage thérapeutique
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