The microbial quality of the working environment was assessed in winter in air-conditioned office buildings in Warsaw. The average indoor concentrations of bacterial and fungal aerosols were low (<10³ cfu·m⁻³), below Polish proposals for threshold limit values in public service buildings. Even during cold months, if the air-conditioning system works properly, people remain the main source of ba...

conclusion the identification of immunodominant proteins adapted to the physiological and genetic conditions of the host is an appropriate diagnostic approach, which could be associated with improved sensitivity and specificity of serologic tests. results four immunodominant proteins (23, 28, 30, 41 kda) were recognized with strongyloidiasis sera in 0.1 diluted serum. none of the proteins react...

A total of 14 cases of infective endocarditis (IE) in children aged 6 months to 10 years were seen from December 1987 to December 1992 at the pediatric unit of Ayatollah Taleghani Medical Center. The majority of patients (12 of 14) were between 5 and 10 years of age. Acyanotic congenital heart disease was known to preexist in 78.6% and rheumatic valvular heart disease in 21.4% of cases. Or...

Social life is usually associated with enhanced propagule pressure, which increases the chance of introducing several individuals during a single introduction event. insects are therefore among most successful invasive species, benefiting from rapid establishment and increased foundation success in new habitats. In termites, pressure may also be by development reproductive small group foraging ...

abiotrophia defectiva was previously known as a member of the nutritionally variant streptococcus (nvs). this microorganism is a member of the normal flora of mouth, urogenital and intestinal tracts. it causes various infections such as bacteriemia, brain abscess, septic arthritis and rarely infective endocarditis. only < 1% of all cases of endocarditis are caused by a. defectiva. a 23 year old...