background: the main objective of this study was to determine the respiratory health symptoms and lung function among roadside hawkers in serdang, malaysia and its association with traffic-related exposures. methods: this cross-sectional comparative study was conducted among 60 roadside hawkers while 60 restaurant workers were included as the comparative group in 2015. a questionnaire was used ...

the staff working at beauty centers are exposed to various chemicalproducts used daily in their working environment. both hair dressers and nail techniciansare exposed to chemicals that are known to have an influence on the respiratory system.in order to evaluate such influence, this cross-sectional observational study wasconducted on a randomly selected 14 beauty centers in dammam city, saudi ...

background: workers in cotton industry are occupationally exposed to various dust-related hazards. the nature of these agents and the respective exposure levels depend on the cotton industry specific sector. these exposures could be associated with respiratory symptoms and changes in lung function parameters. objective: to evaluate associations between occupational exposure and respiratory func...

background although dolomite is classified as a relatively non-toxic, nuisance dust, little information exists as to its potential to produce respiratory disorders following occupational exposure. the purpose of this study was, therefore, to evaluate the possible effects, if any, of heavy inhalation exposure to this chemical on the prevalence of respiratory symptoms, functional impairments and ...

IMPORTANCE: Since the outbreak of coronavirus disease 2019 (COVID-19), various digestive symptoms have been frequently reported in a significant portion of patients infected with the virus. It is well established that most patients with COVID-19 have fever along with respiratory signs and symptoms, such as cough and dyspnea. We present 36 cases with chief complaint of gastrointestinal (GI) symp...

Background: Lophomonas blattarum is protozoan generally parasitizes in the intestinal tracts of some arthropods. It can infect adults and children with unspecific respiratory symptoms. We aimed to investigate the frequency of Lophomonas blattarum in children with respiratory symptoms in North East of Iran. Materials and Methods: One hundred fifty-six children with respiratory symptoms were inv...