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Biomedical subjects

B Brzin

Publications and source records attributed to B Brzin.

At least 19 recordsLinked to original sources
PubMed1990

Functional similarity of Listeria ivanovii and Staphylococcus aureus in CAMP test.

On the basis of synergistic haemolysis of Listeria ivanovii and Rhodococcus equi, we suspected CAMP positiveness of R. equi and complete CAMP negativeness of L. ivanovii and confirmed that the latter, showing a double-zone haemolysis like Staphylococcus aureus, could produce the same phenomenon in the CAMP test if used instead of staphylococci. This functional similarity of L. ivanovii and CAMP Staphylococcus could be used as an additional diagnostic test for L. ivanovii.

Hemolysis↗
PubMed1981

Alcaligenes odorans, var. viridans as a hospital infectant.

The hazards of acquiring a nosocomial infection are significant even in modern hospitals in spite of aseptic procedures and antibiotics. In order to prevent or stop a hospital epidemic it is necessary to know or to recognize the infective agent, its source and its way of spreading. This is not always easy, esp. with some potential pathogens which are frequently found in the pathological materials as well as in the hospital environment. In the described series of hospital spread of Alcaligenes odorans, var. viridans, it was not difficult to identify the bacterium, it was easy to state the source and not very hard to eradicate it. The way of spreading, however, remained unclear. Hospital infections occur everywhere, even if sometimes unrecognized. With modern treatments facultatively pathogenic bacteria are increasingly becoming hospital infectants. Our aim was to look for such ones, esp. if not described yet as hospital infections.

Alcaligenes↗
PubMed1981

Branhamella catarrhalis as a human pathogen and a possible hospital infectant.

Branhamella catarrhalis, previously named Neisseria catarrhalis and supposed to be a saprophytic inhabitant of the human upper respiratory tract, is a facultative pathogen. It was already proved by other authors to be able to cause serious and even lethal respiratory infections and purulent meningitis. Our aim was only to call attention to its repeated and massive isolation of pure culture from nose and throat swabs of hospitalized children who mostly suffered from asthma bronchiale and spastic bronchitis. The isolation of this bacterium often occurred in clusters of 3 to 4 in the same ward. Some other observation indicate occasional spreading of this organisms from person to person at home and in the hospital. In most cases Branhamella catarrhalis behaved only as a mild infectant, but in immunodeficient or otherwise weakened patient it can cause serious hospital infection.

Adult↗
PubMed1978

The effect of the fungus Clavatia utriformis on the morphological picture and physiological behaviour of bacteria.

When investigating the effect of various fungi on various bacteria, we found that the edible fungus Clavatia caelata (utriformis) affected the bacteria Alcaligenes faecalis in a triple way. A large zone of inhibition of these bacteria was found around the piece of this fungus. Bacteria growing in the outer, i.e., bacteriostatic zone, were morphologically changed/mostly elongated, but also thickened) and also enhanced in their haemolysis. These features are similar to those of some bacteria when under the influence of some antibiotics (esp. penicillins). These changes were only phenotypic. The changed bacterial forms reverted to normal bacterial form and normal haemolysis in 24 hrs. after the transfer to a medium without the influence of the fungus.

Alcaligenes↗
PubMed1977

Accentuation of Staphylococcal hemolysis (CAMP-like test) by pneumococci.

A CAMP-like phenomenon can be observed in Streptococcus pneumoniae. It is supposed to be caused likewise as in group B streptococci by a haemolysis accentuating factor. However, the form of the accentuated haemolysis is different from that in group B streptococci and similar to that in listeria.

Hemolysis↗
PubMed1977

Purulent conjunctivitis caused by group B streptococci.

To the already known pathological pictures caused by group B streptococci, mucopurulent conjunctivitis is added. Clinical pictures in adult and children are described shortly. Bacteriological findings are added. Pharyngeal streptococci of the same group found in some cases in people nearby, may be incriminated as the source of infection of conjunctiva.

Child↗
PubMed1976

Camp-phenomenon in staphylococci.

Most strains of Staphylococcus aureus and some strains of Staphylococcus epidermidis show Camp phenomenon which differs slightly from that observed in Streptococci group B. - Positive Camp test in staphylococci might be an additional indication of their pathogenicity.

Hemolysis↗