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Biomedical subjects

D Blau

Publications and source records attributed to D Blau.

11 recordsLinked to original sources
PubMed1996

International epidemiological and microbiological study of outbreak of Salmonella agona infection from a ready to eat savoury snack--II: Israel.

OBJECTIVES: To explain an increase in the incidence of salmonellosis caused by Salmonella agona in Israel between October 1994 and January 1995 in the light of an outbreak of S agona phage type 15 infection in England and Wales caused by consumption of a ready to eat savoury snack produced in Israel. DESIGN: Epidemiology of S agona in 1994-5 was analysed and two consecutive, case-control studies of 32 and 26 case-control pairs were performed. Phage typing and molecular methods were used to characterise strains of S agona isolated from cases and samples of the snack in Israel and England and Wales. RESULTS: The increase in the incidence of S agona between October 1994 and January 1995 was countrywide. Cases of infection with group B salmonella increased from 60% to 80% in children under 5 years old. In both case-control studies, cases consumed more of the snack than did controls (4.25 v 2.94 packets per week in the first study (P = 0.086) and 4.04 v 2.37 packets per week in the second study (P = 0.034)). When the two studies were combined there was a significant dose-response relation for the number of packets consumed weekly. Compared with consumption of less than two packets, the odds ratio was 1.43 for between two and six packets and 3.37 for seven or more packets (chi 2 for trend = 5.27, P = 0.02) S agona phage type 15 was isolated from a packet of the snack sold in Israel, and the strain was identical with those isolated from packets and cases in Israel and England and Wales. CONCLUSIONS: This outbreak of S agona was caused by the contamination of a snack produced in Israel. Even under modern operating conditions, large, widespread international outbreaks of foodborne disease can occur. The success of this investigation resulted from excellent international collaboration between public health authorities.

Case-Control Studies↗
PubMed1982

Somatosensory evoked potential to peroneal nerve stimulation in patients with herniated lumbar discs.

The somatosensory evoked potential (SEP) to peroneal nerve stimulation was recorded from 76 patients with myelographically proven herniated lumbar disc and was compared with normative data obtained from 65 healthy subjects. All patients with disc herniation had an abnormal SEP even when examination failed to disclose sensory deficits. In the patients with distortion of a root sleeve, the SEP abnormality was confined to the involved side. When myelography demonstrated large defects in the dural sac, there was electrophysiological evidence of disturbed conduction from the asymptomatic leg also. SEP changes in postoperative examinations correlated well with improvement or worsening of the patient's condition and enabled objective evaluation of the dynamics of sensory conduction along the involved structures.

Adolescent↗
PubMed1982

Neuroses and character disorders.

This paper emphasizes the importance of understanding and treating the aged with neuroses and character disorders. Although they are often neglected by mental health workers, the aged with these emotional problems form a far larger group than the psychotic aged who receive a greater share of attention. Stereotyped attitudes and commonly accepted myths regarding the aged encourage an attitude of therapeutic nihilism and pessimism. The unconscious motivation for ignoring the obvious distress of older people is discussed. Certain specific myths, such as the "rigidity" of the aged and the tendency to "wastebasket" and to view all pathology as organic or caused by aging alone, are discussed. The fear of the devouring older person is also explored, as well as the myth of "family rejection." A number of clinical examples are given of the types of emotional problems frequently seen among the noninstitutionalized older population. Each case is described from the standpoint of dynamic understanding and management. A trial of observation and psychotherapy is recommended in all situations, since even "organic" signs may be reversed. Generalizations concerning the aged as a group are avoided in the belief that they lead to further stereotyping and the discouragement of scientific investigation. Individual assessment and understanding are emphasized. The persistence of unconscious attitudes, fantasies, and wishes from childhood is pointed out, but it is emphasized that they may not always carry the same value and meaning throughout life. Certain patients achieve insight through treatment, along with a greater capacity to enjoy life than they had before. Others are comforted by the relationship with the therapist for both its "real" and unconscious meanings. Some require assistance in accepting and tolerating more regressive behavior, while others need help in accepting and assimilating their changing feelings about their goals, objects, and sexuality in old age. Reminiscences are emphasized as important sources of elevating self-esteem. Concerns about death and common countertransference problems in work with the aged are examined. The need to be flexible but not to "lean over backward" is emphasized. Patients understand a genuine offer of involvement and concern as the most precious gift.

Aged↗