Co-Prevalence of Poultry, Rodent and House Dust Mites in Nigerian Poultry Confinements and Its Possible Association with Respiratory Health Hazards (original) (raw)

LEVEL OF HEALTH RISK AMONG POULTRY WORKERS IN NIGERIA

Research Forestry and Wildlife, 2020

Poultry, or domestic fowl, refers to winged animals that have been domesticated for their nutritional and economic benefits. One of the problems generated from their intensive management method is the long time exposure of poultry workers to dangerous gases which has led to various health implications among the workers. This project examines different departments within a poultry company in order to assess the level of risk present in the company. One Hundred copies of questionnaires were disseminated among staffs of three different farms in Osun and Oyo states to gather information. Likewise, personal observations / interview of poultry staffs were not left out. The farms visited included Tuns (Osogbo), Zartech (Ibadan) and Vina (Ibadan) farms, Osun and Oyo States respectively. Different units such as: pen house, laboratory, farm workshop (maintenance engineers, technician), Administrative offices were captured with the questionnaires. Result obtained shows that cholera, E. coli, salmonellosis, staphylococcus, Avian flu, Mark, New castle diseases and diarrhea were the most common diseases affecting poultry workers. It was also gathered that, the chemicals used as disinfectant contributes to cough, catarrh, sore throat and breathing difficulty especially among the pen attendant who spend most of their working hours in the pen house. It was observed from the results that pen attendants who have spent between 0-2, 2-5, 5-10 and10-15years on the job have 0%, 33.33%,15.5% and 0% of related diseases were at high risk of respiratory disorder, cough and catahrr.

Asthma and Histopathological Changes Associated with Poultry Dust Exposure

The study assessed the prevalence of symptoms of asthma among Nigerian poultry workers and the possible pathological changes in lung associated with dust exposure through an indirect experimental exposure of poultry dust to albino rats. Questionnaire was developed to elicit data on symptoms of asthma, and administered to 250 poultry workers as well as 100 control subjects. Forty albino rats were divided into 5 groups of 8 rats each, 4 groups were exposed to poultry dust in an exposure chamber, while the fifth group served as control. The histopathological features of lungs of the exposed rats include cells infiltration in alveoli, interstitial cells infiltration, alveolar wall thickening and granuloma formation. In most cases, necrosis and breaking of alveolar walls to form large zones were observed in the lungs of the exposed rats. Vasodilatation and fibrosis of the lungs were equally observed. The degree of lungs inflammation or degeneration was found to be positively correlated with duration of exposure to poultry dust (r = +0.918, p < 0.05). Significantly higher prevalence of sputum, cough, difficulty in breathing, tightness of chest and wheezing were obtained for poultry workers than the control populace. The result indicates that prolonged inhalation of poultry dust can result in extrinsic allergic alveolitis with prevalence of symptoms of asthma.

Occurrence and Species Composition of the Domestic Mites in Six Egyptian Governorates

Journal of the Egyptian Society of Parasitology, 2020

Domestic mites, the combined group of household-living storage mites and pyroglyphid housedustmites, belong to subclass Acari. Identifying mites to species level help to improve the managementof their allergies as they produce species-specific allergens. Knowledge of the impact ofthe diverse and changing ecological conditions in the home environment is useful in developingstrategies to avoid the development and growth of large populations of domestic allergic mites.This study identified domestic mite’s species in six Egyptian Governorates. The dust sampleswere collected from the HDM allergic patients for identification and seasonal distribution. From120 samples, seven species were identified: Dermatophagoides farinae (69.4%), D. pteronyssinus(55.5%), Tyrophagus spp. (38.8%), Blomia tropicalis (30.5%), Cheyletus spp. (13.8%), Euroglyphusmaynei (5.5%), and Tarsonemus spp. (5.5%). The highest positive samples were in QalyobiaGovernorate (73.7%) and lowest in Cairo Governorate (33.3%). ...

Sensitisation to mites in laboratory animal workers with rhinitis

Occupational and environmental medicine, 2005

To determine the frequency of sensitisation to mites among rhinitic laboratory animal workers and to clarify whether sensitisation could be occupational. Skin prick tests (SPT) were performed in 40 subjects who were working with laboratory animals in Kuopio University research units and who had been referred to Kuopio University Hospital for work related rhinitis. The SPT panel consisted of three storage mites, two house dust mites, 11 other common environmental airborne allergens, latex, and 2-4 individually relevant laboratory animals. To determine signs of mites in animal facilities, guanine was determined in 22 dust samples taken from feedstuffs or bedding material used for laboratory animals and from rooms where these materials were stored and handled. Positive SPT results were found in 35 out of 40 workers: in 14 for storage mites, four for house dust mites, 25 for other common aeroallergens, as well as positive reactions to laboratory animals in 19 individuals. The guanine te...