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PubMed1997

Demographic differences in notifiable infectious disease morbidity--United States, 1992-1994.

Before the 1990s, National Notifiable Diseases Surveillance System (NNDSS) data consisted primarily of summary records that lacked demographic information for persons with reported diseases. By 1990, all 50 states were using CDC's National Electronic Telecommunications System for Surveillance (NETSS) to report individual case data that included demographic information (without personal identifiers) about most nationally notifiable diseases. These data are important for evaluating sex- specific differences in the occurrence of infectious diseases; monitoring infectious disease morbidity trends; determining the relative disease burdens among demographically diverse subpopulations in the United States; targeting prevention; and identifying priorities for research and control. This report describes and compares the numbers and rates of cases for the most frequently reported nationally notifiable infectious diseases, by sex and age of persons with reported illness, reported to CDC during 1992-1994. The findings indicate that for seven of the 10 most commonly reported notifiable diseases, the reported incidence is lower among women.

Adolescent↗

PubMed1985

[History of the changes in infectious diseases].

The spectrum of infectious diseases is not at all constant, it changes. This statement is relevant for the great epidemics as well as for nosocomial infections and simple infectious processes. The epidemiological situation of plague, lepra, cholera and diphtheria is discussed. As concerns nosocomial infections four periods are separated: the time before Semmelweis and Lister, the period of the introduction of antiseptic/aseptic measurements to the hospitals and the chemotherapy-time (period until 1965) and the time afterwards. The spectrum of nosocomial infections and its changes as observed in the Cologne area are presented. But also the types of a certain bacterial species are changing as discussed on the example of S. aureus phagetype 80/81. As far as known factors involved in these changes are mentioned. The increasing use of plastic materials in medicine (i.e. intravenous catheters, Spitz-Holtershunts, hipps, valves, etcetera) is the cause of infectious complications, S. epidermidis being the dominant organism.

Animals↗

PubMed2004

Unhealthy landscapes: Policy recommendations on land use change and infectious disease emergence.

Anthropogenic land use changes drive a range of infectious disease outbreaks and emergence events and modify the transmission of endemic infections. These drivers include agricultural encroachment, deforestation, road construction, dam building, irrigation, wetland modification, mining, the concentration or expansion of urban environments, coastal zone degradation, and other activities. These changes in turn cause a cascade of factors that exacerbate infectious disease emergence, such as forest fragmentation, disease introduction, pollution, poverty, and human migration. The Working Group on Land Use Change and Disease Emergence grew out of a special colloquium that convened international experts in infectious diseases, ecology, and environmental health to assess the current state of knowledge and to develop recommendations for addressing these environmental health challenges. The group established a systems model approach and priority lists of infectious diseases affected by ecologic degradation. Policy-relevant levels of the model include specific health risk factors, landscape or habitat change, and institutional (economic and behavioral) levels. The group recommended creating Centers of Excellence in Ecology and Health Research and Training, based at regional universities and/or research institutes with close links to the surrounding communities. The centers' objectives would be 3-fold: a) to provide information to local communities about the links between environmental change and public health; b) to facilitate fully interdisciplinary research from a variety of natural, social, and health sciences and train professionals who can conduct interdisciplinary research; and c) to engage in science-based communication and assessment for policy making toward sustainable health and ecosystems.

Agriculture↗

PubMedDate not supplied

Medical surveillance of infectious disease endpoints.

Occupational medical surveillance typically targets chronic progressive diseases. In contrast, most infectious diseases are acute rather than chronic, and the exposures that result in their transmission are often acute but frequently repetitive. Therefore, the strategies for occupational infectious disease surveillance are different from those for other occupational disease, as detailed in this paper.

Acute Disease↗

PubMed2005

Work-related infectious disease reported to the Occupational Disease Intelligence Network and The Health and Occupation Reporting network in the UK (2000-2003).

BACKGROUND: Infectious diseases remain an important cause of self-reported work-related illness, with socio-economic consequences, including sickness absence. Reporting of infectious disease by occupational and specialist physicians is an important tool in the investigation of occupationally related infections and is relevant in their management. AIMS: To examine the reporting of cases of infectious disease by occupational and specialist physicians to schemes collecting data on occupational ill-health. METHODS: Cases of infectious disease reported by occupational and specialist physicians to the UK based schemes, Occupational Disease Intelligence Network (ODIN) and The Health and Occupation Reporting network (THOR), from 2000 to 2003 were analysed by reporting patterns, diagnosis, single case or outbreak reporting and industry. RESULTS: The total number of estimated cases of infectious disease reported to ODIN and THOR from 2000 to 2003 was 5606; 74.9% cases were diarrhoeal disease, and 11.1% scabies. The majority (81.4%) of cases were reported in SIDAW, where the participation rate for reporters was 55%. Reporting rates were much higher in OPRA, SWORD and EPIDERM (ranging from 86 to 96%). The most frequently reported industrial sectors were social care (39.5%) and health (29.4%); while the manufacture of chemical products contributed 4.3% overall, but 33.8% to estimated cases in OPRA. CONCLUSIONS: Despite limitations related to under reporting, the occupational and specialist physician schemes in ODIN and THOR provide data that may be used to look at patterns of case reporting for occupational ill-health, including infectious disease. The reporting schemes also provide an important means of alerting peers about potential novel causes, precipitating factors, or industrial sectors associated with occupational disease.

Communicable Diseases↗

PubMed2004

The role of the obstetrician-gynecologist in emerging infectious diseases: monkeypox and pregnancy.

Early in June 2003, the Centers for Disease Control and Prevention (CDC) announced yet another unique infectious disease outbreak, the first evidence of community-acquired monkeypox in the United States. By July 8, 2003, a total of 71 cases had been reported to CDC from 6 states. When emerging infectious diseases are reported in the United States, particularly when these reports receive widespread media attention, obstetrician-gynecologists may be called upon to rapidly respond to queries from their patients and to address certain infectious disease risks within their clinical practices. In addition, obstetrician-gynecologists may have specific concerns about the implications for an infectious disease outbreak, such as monkeypox, for pregnant women. Therefore, it is important that obstetrician-gynecologists know how to gather up-to-date and accurate information about infectious disease outbreaks and that they be familiar with the public health response system for responding to such outbreaks.

Communicable Diseases, Emerging↗

PubMed2006

Seasonal infectious disease epidemiology.

Seasonal change in the incidence of infectious diseases is a common phenomenon in both temperate and tropical climates. However, the mechanisms responsible for seasonal disease incidence, and the epidemiological consequences of seasonality, are poorly understood with rare exception. Standard epidemiological theory and concepts such as the basic reproductive number R0 no longer apply, and the implications for interventions that themselves may be periodic, such as pulse vaccination, have not been formally examined. This paper examines the causes and consequences of seasonality, and in so doing derives several new results concerning vaccination strategy and the interpretation of disease outbreak data. It begins with a brief review of published scientific studies in support of different causes of seasonality in infectious diseases of humans, identifying four principal mechanisms and their association with different routes of transmission. It then describes the consequences of seasonality for R0, disease outbreaks, endemic dynamics and persistence. Finally, a mathematical analysis of routine and pulse vaccination programmes for seasonal infections is presented. The synthesis of seasonal infectious disease epidemiology attempted by this paper highlights the need for further empirical and theoretical work.

Animals↗

PubMed2003

Impact of vaccinations and infectious diseases on the risk of melanoma--evaluation of an EORTC case-control study.

A significant correlation between a reduced risk of melanoma and BCG and vaccinia vaccination in early childhood or infectious diseases later in life has already been reported from the FEBrile Infections and Melanoma (FEBIM) multicentre case-control study. This correlation is further evaluated in this study based on 603 incident cases of malignant melanoma and 627 population controls in six European countries and Israel by means of a joint analysis of the influence of vaccinations and infectious diseases. In addition, the previously unconsidered impact of influenza vaccinations is evaluated for the whole study population. The strong effects of the frequently given BCG and vaccinia vaccinations in early childhood, as well as of uncommon previous severe infectious diseases, were apparently not cumulative. With the Odds Ratio (OR) being set at 1 in the absence of vaccinations and infectious diseases, the OR dropped to 0.37 (95% Confidence Interval (CI): 0.10-1.42) when subjects had experienced one or more severe infectious diseases, associated with a fever of > 38.5 degrees C, and had not been vaccinated with BCG or vaccinia. The OR was 0.29 (CI: 0.15-0.57) in those who had had a severe infectious disease and were vaccinated with either BCG or vaccinia and 0.33 (CI: 0.17-0.65) for those with 1 or more severe infectious diseases and who had received both vaccinations. We conclude that both vaccinations as well as previous episodes of having a severe infectious disease induced the same protective mechanism with regards to the risk of melanoma. Because of a 'masking effect' by the vaccinia vaccination, the protective effect of the BCG vaccination and of certain infectious diseases against cancer has remained undetected. The vaccinations contributed more to the protection of the population than a previous episode of having an infectious disease. In view of the termination of vaccinations with vaccinia in all countries and of BCG in many of them, these findings call for a re-evaluation of vaccination strategies.

Adolescent↗

PubMed1993

[Application of analytical hierarchy process in the evaluation of quality of management of infectious diseases].

We evaluated the quality of management of infectious diseases in hospitals with analytical hierarchy process (AHP). An attempt to work out assessing model for the management of infectious diseases by establishing a Goal Tree and groups of indices is presented. The rankings, indices and stresses in each assess of this model were established by the request of the content and quality of management of infectious diseases. The Consistent Index (C.I) was used to test whether the contrast rankings of the model were logical, making the logical judgement of evaluated factors quantitated. The results show that the model is scientific and feasible.

China↗

PubMed1996

Society of Infectious Diseases Pharmacists (SIDP) position papers.

The Society of Infectious Diseases Pharmacists (SIDP) is an organization, comprised mainly of Pharm D.s in academia, industry, and hospital practice, whose professional orientation is in the area of infectious disease pharmacotherapy. SIDP membership has deemed it necessary to produce position statements on issues of concern to the infectious disease community. This article is an overview of SIDP, along with a description of their guidelines for position statement development. The value of any organization's position statement(s) is influenced by a multitude of factors (e.g., author's expertise, accuracy, evidence, opinion, etc.); thus, some degree of scrutiny is advised.

Anti-Bacterial Agents↗

PubMed2006

Taking sociology seriously: a new approach to the bioethical problems of infectious disease.

After a history of neglect, bioethicists have recently turned their attention to the topic of infectious disease. In this paper we link bioethicists' earlier neglect of infectious disease to their under-appreciation of the extent to which the problem of infectious disease is related to social factors and thus to questions of justice. We argue that a social causation of illness model - well-known to sociologists of medicine, but incompletely understood by bioethicists - will improve future bioethical analysis of issues related to infectious disease. By emphasising the relationships between social and economic structures of inequality and health, the social causation model provides a richer approach to ethical issues associated with infectious disease than the more commonly used biomedical model.

Bioethics↗

PubMed1995

The practice of infectious diseases in the 1990s: the Canadian experience.

A survey of the members of the Canadian Infectious Disease Society was carried out to determine the content of an infectious diseases consultative practice in the 1990s. Respondents were asked to identify all new inpatient, outpatient, and telephone consultations during a 1-week period in 1990. Consultations were categorized by the infectious disease syndrome of the patient and by the microorganism that was identified. Bacterial infections were the most common cause of inpatient consultations, while viral infections were more common in outpatients. Consultations for parasitic infections were primarily for Pneumocystis carinii pneumonia related to infection with the human immunodeficiency virus (HIV). "Newer" infectious disease syndromes such as chronic fatigue syndrome, toxic shock syndrome, and Lyme disease were all represented in the responses for the 1-week study period. The significant impact of HIV infection on the overall consultative load suggests that there will be a continuing need for newly trained infectious disease consultants into the 21st century.

Canada↗

PubMed2001

The role of epidemiology in the prevention, diagnosis, and control of infectious diseases of fish.

Epidemiologic methods are essential to understanding infectious diseases in aquaculture. Unfortunately, many of these methods are poorly understood or not utilized by fish-health scientists and aquaculturists -- often because of the lack of contact with epidemiologists who are willing to investigate fish diseases. In this paper, we describe direct interactions between epidemiologists and fish-health specialists that have resulted in an improved understanding of the causes and management of infectious diseases in aquaculture. We focus on risk-factor studies, risk analysis and infectious-disease modeling, evaluation of diagnostic tests and experimental studies. We also describe characteristics of confined fish populations that make them ideal for developing and testing epidemiologic models and the theoretical and practical challenges of designing and conducting epidemiologic studies in fish farms. Throughout our presentation, emphasis is given to characteristics, opportunities and problems associated mainly with conducting epidemiologic studies to intensive aquaculture systems. We conclude that the development of increased cooperation among epidemiologists, fish-health scientists and aquaculturists will be mutually beneficial and, therefore, efforts for such collaboration should be initiated from all parties involved.

Animal Diseases↗

PubMed2006

Infectious disease outbreaks in competitive sports: a review of the literature.

Recent outbreaks of infectious diseases in athletes in competitive sports have stimulated considerable interest. The environments in which these athletes compete, practice, receive therapy for injuries, and travel, both domestically and internationally, provide varied opportunities for the transmission of infectious organisms. The purpose of this medical literature review is to identify the agents most commonly reported in the medical literature as responsible for infectious disease outbreaks in specific sports and their modes of transmission and to guide targeted prevention efforts. A literature review of English-language articles in medical publications that reported outbreaks of infectious diseases in competitive athletes was conducted in PubMed MEDLINE from 1966 through May 2005. Outbreaks that were solely food borne were excluded. Fifty-nine reports of infectious disease outbreaks in competitive sports were identified in the published medical literature. Herpes simplex virus infections appear to be common among wrestlers and rugby players, with no single strain responsible for the outbreaks. Methicillin-resistant Staphylococcus aureus was responsible for several recent outbreaks of soft tissue and skin infections among collegiate and professional athletes. The most common mode of transmission in outbreaks was direct, person-to-person (primarily skin-to-skin) contact. Blood-borne exposure was implicated in 2 confirmed outbreaks of hepatitis. Airborne and vector transmissions were rarely reported. This review provides an overview of infectious disease outbreaks thought to be either serious enough or unusual enough to report. Appropriate surveillance of the frequency of infections will allow sports medicine staff to identify outbreaks quickly and take necessary measures to contain further transmission and prevent future outbreaks.

Communicable Diseases↗

PubMed2001

[Effective clinical information system closely connected with clinical laboratory data for infectious diseases].

Nowadays, information on clinical laboratory tests for infectious disease is almost supported by information on such as clinical, identical and susceptible microbiological tests. However, information support necessary for clinical diagnosis and therapy with clinically valuable data remains unsatisfactory. To offer more useful microbiological information to support clinics from clinical laboratory division, exchange of clinical information between clinical divisions, integrated systems of clinical information in the district and establishment of domestic and international information network et al are required. Establishment of these advanced total information network systems for clinical microbiological tests for infectious diseases may exceedingly contribute to earlier diagnosis, control and prevention of various infectious diseases.

Clinical Laboratory Information Systems↗

PubMedDate not supplied

Plagues--what's past is present: thoughts on the origin and history of new infectious diseases.

Medical science has made tremendous strides in overcoming infectious diseases in the 20th century. Despite this, several epidemics of previously unrecognized diseases have occurred during the last 15 years. These diseases include Lyme disease, Legionnaires' disease, toxic shock syndrome, and AIDS. Examination of past epidemics, including the plague of Athens, the black death, syphilis, and influenza, suggests that the sudden occurrence of diseases that were previously unrecognized is not unusual. Analysis of the new infectious disease indicates that while all four appeared suddenly, isolated cases of the disease occurred before the actual epidemic. Further, all four new diseases were found to be due to agents or toxins that were not previously recognized. Epidemics due to new infectious diseases may arise by several mechanisms, including mutation of the pathogen to a virulent form and introduction of an infectious agent into a nonimmune population. Environmental and behavioral factors may play an important role, as illustrated by toxic shock syndrome, Legionnaires' disease, and AIDS. On the other hand, epidemic diseases tend to abate over time because of changes in the infecting pathogen and in the host. Hence, epidemics can be seen as cycles; new diseases will arise periodically, occasionally with a devastating outcome. With time the effects of these diseases on the population will ameliorate. The cycle will begin again when a new disease emerges.

Acquired Immunodeficiency Syndrome↗

PubMed1999

Investigating potential associations between chronic exposure to polychlorinated biphenyls and infectious disease mortality in harbour porpoises from England and Wales.

Bioaccumulation of immunosuppressive organochlorines like polychlorinated biphenyls (PCBs) may pose a threat to the health and viability of cetacean populations. To investigate possible associations between chronic exposure to PCBs and infectious disease mortality in harbour porpoises Phocoena phocoena in UK waters, blubber concentrations of 25 individual chlorobiphenyl (CB) congeners in 34 healthy harbour porpoises that died due to physical trauma (mainly by-catch) were compared with CB concentrations in 33 animals that died due to infectious disease. The infectious disease group had significantly greater total 25 CBs (sigma 25CBs) concentrations than the physical trauma group (P < 0.001). The mean sigma 25CBs concentration in animals that died due to physical trauma was 13.6 mg kg-1 extractable lipid whereas the mean concentration in the infectious disease group was 31.1 mg kg-1 extractable lipid. The relationship between higher sigma 25CBs and the infectious disease group was not confounded by age, sex, nutritional status, season, location or year of stranding. In addition, adult females had significantly lower sigma 25CBs levels than adult males (P < 0.05) due to maternal transfer of CBs to offspring. These findings are consistent with the hypothesis that chronic PCB exposure predisposes harbour porpoises in UK waters to infectious disease mortality, although further research is required to test these associations more robustly.

Adipose Tissue↗

PubMedDate not supplied

[Trends in infectious diseases mortality in Spain].

OBJECTIVE: The aim of this study was to describe the trend and geographical distribution of mortality by infectious diseases in Spain between 1980 and 1993. METHODS: Deaths caused by infectious diseases ocurred in Spain between 1980-1993 were studied. Data were obtained from the national mortality registry from the Instituto Nacional de Estadística. Deaths included in the International Diseases Classification (ICD-9) in group I were included, and also deaths by infectious diseases included in other groups. The trend in mortality risk was evaluated by means of a log-lineal Poisson model. Standardized mortality rates (SMR) by age for each Spanish province in 1980-83 and 1990-93, were calculated to identify geographical differences in mortality. These SMR were compared using Spearman correlation coefficient. RESULTS: Between 1980 and 1993, the adjusted mortality rate by infectious diseases decreased around 1.4% each year. In 1980 and also in 1993 respiratory tract infections were the first cause of death, 29.6 and 20.3 deaths for 105 inhabitants, respectively. The second cause of death was tuberculosis in 1980, 3.9 x 10⁵ and HIV infection in 1993, 10.7 x 10⁵. This decrease in infectious diseases mortality during the studied period was shown in all age groups, except for the 25 to 44 age group, were mortality rate increased by seven times. The geographical distribution showed that the provinces with the highest mortality rate were the same in 1980-83 and in 1990-93 (Spearman coefficient: 0.49; p < 0.001). CONCLUSIONS: Because deaths by infectious diseases are distributed in different groups in the ICD-9, their impact on mortality is underestimated, although they are the fourth cause of death in Spain. However, between 1980 and 1993 it has been shown a decrease in mortality by these diseases, except for the 25-44 age group where an impressive increase ocurred due to HIV infection. No differences between provinces have been shown.

Communicable Diseases↗