Bacterial diseases

Xem 1-20 trên 119 kết quả Bacterial diseases
  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học quốc tế đề tài: A genetic epidemiological model to describe resistance to an endemic bacterial disease in livestock: application to footrot in sheep

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  • This comprehensive volume covers the major viral, bacterial and fungal diseases in fi n- and shellfi shes. It completes the three-volume series on fi sh diseases and disorders; Volume I (published in 1995) is on parasitic diseases in fi n- and shellfi shes while Volume II (published in 1998) deals with non-infectious disorders in fi nfi sh. Reviews in the three volumes are written by international authorities that are actively working in the area or have contributed greatly to our understanding of specifi c piscine diseases or disorders.

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  • Inflammatory bowel disease research is changing. Progress in defining and treating these diseases is advancing in lock step with the furious pace of technological advances that continue to refine the tools of discovery. With sequencing of the entire genome completed, genetics research is providing direction for molecular and immunological in vivo and in vitro investigation, which in turn directs the development of targeted therapeutics.

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  • The complement system (Chap. 308) consists of a group of serum proteins functioning as a cooperative, self-regulating cascade of enzymes that adhere to— and in some cases disrupt—the surface of invading organisms. Some of these surface-adherent proteins (e.g., C3b) can then act as opsonins for destruction of microbes by phagocytes. The later, "terminal" components (C7, C8, and C9) can directly kill some bacterial invaders (notably, many of the neisseriae) by forming a membrane attack complex and disrupting the integrity of the bacterial membrane, thus causing bacteriolysis.

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  • Pathogenic Mechanisms Enteric pathogens have developed a variety of tactics to overcome host defenses. Understanding the virulence factors employed by these organisms is important in the diagnosis and treatment of clinical disease. Inoculum Size The number of microorganisms that must be ingested to cause disease varies considerably from species to species. For Shigella, enterohemorrhagic Escherichia coli, Giardia lamblia, or Entamoeba, as few as 10–100 bacteria or cysts can produce infection, while 105–108Vibrio cholerae organisms must be ingested orally to cause disease.

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  • In the Appendix, we compare the distributions of deaths by cause and by age for the NDMC and the National Capital Territory of Delhi. The distributions of deaths by cause are similar, with between 20 and 25 percent of all medically certified deaths attributable to causes associated with air pollution (respiratory illnesses and cardiovascular disease). Roughly the same percentage of deaths are attributable to infectious diseases and to perinatal causes. The distribution of deaths by age group differs somewhat between the NDMC and the National Capital Territory.

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  • Medicine is an ever-changing science. Every day we are encountered with the new developments and knowledge in the pathogenesis, mechanism of disease, newer diagnostic modalities, treatment options and new challenges in the management of the various diseases. The same holds true for respiratory diseases with the emergence of new respiratory pathogens having significant impact on the respiratory system.

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  • Periodontal Disease Periodontal disease accounts for more tooth loss than caries, particularly in the elderly. Like dental caries, chronic infection of the gingiva and anchoring structures of the tooth begins with formation of bacterial plaque. The process begins invisibly above the gum line and in the gingival sulcus. Plaque, including mineralized plaque (calculus), is preventable by appropriate dental hygiene, including periodic professional cleaning.

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  • Harrison's Internal Medicine Chapter 122. Acute Infectious Diarrheal Diseases and Bacterial Food Poisoning Acute Infectious Diarrheal Diseases and Bacterial Food Poisoning: Introduction Ranging from mild annoyances during vacations to devastating dehydrating illnesses that can kill within hours, acute gastrointestinal illnesses rank second only to acute upper respiratory illnesses as the most common diseases worldwide.

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  • Between 15 April and 30 June 1997, 31 previously healthy infants and young children in Sarawak died after a short febrile illness against a background of an outbreak of HFMD in the State. Sibu was badly affected during this outbreak as 11 of the death cases were reported from Sibu followed by Sarikei with 7 death cases. Surveillance of HFMD was initiated by Sarawak Health Department during this outbreak of sudden deaths among young children in Sarawak from 6 June 1997. The surveillance was stopped in December 1997. However, in 1998, following a report of...

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  • Influenza. Even though influenza viruses usually cause URIs in adults, they are increasingly being recognized as an impor- tant cause of LRIs in children and perhaps the second most important cause after RSVs of hospitalization of children with an ARI (Neuzil and others 2002).Although influenza is consid- ered infrequent in developing countries, its epidemiology remains to be investigated thoroughly. The potential burden of influenza as a cause of death in children is unknown. Influenza virus type A may cause seasonal outbreaks, and type B may cause sporadic infection.

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  • Our aim was to evaluate the effect of human immunodeficiency virus (HIV) disease stage on chest radiographic (CXR) findings among patients with HIV-related pulmonary tuberculosis (TB). Data are from a prospective multicenter treatment trial for HIV-related TB. Baseline CXR findings and CD4/ lymphocyte counts were compared among patients with HIV-related TB. Data from published studies describing CXR findings in HIV-infected patients were reviewed and a pooleddata analysis was conducted. Of 135 patients with culture-confirmed HIV-related TB, 128 had both CXR and CD4/ lymphocyte data.

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  • Host Defenses Given the enormous number of microorganisms ingested with every meal, the normal host must combat a constant influx of potential enteric pathogens. Studies of infections in patients with alterations in defense mechanisms have led to a greater understanding of the variety of ways in which the normal host can protect itself against disease. Normal Flora The large numbers of bacteria that normally inhabit the intestine act as an important host defense by preventing colonization by potential enteric pathogens.

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  • Tham khảo tài liệu 'chapter 122. acute infectious diarrheal diseases and bacterial food poisoning (part 6)', y tế - sức khoẻ, y học thường thức phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Status of the Host Various host factors must be considered in the devising of antibacterial chemotherapy. The host's antibacterial immune function is of importance, particularly as it relates to opsonophagocytic function. Since the major host defense against acute, overwhelming bacterial infection is the polymorphonuclear leukocyte, patients with neutropenia must be treated aggressively and empirically with bactericidal drugs for suspected infection (Chap. 82). Likewise, patients who have deficient humoral immunity (e.g.

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  • Periodontitis is a chronic infection that results from the interaction of periodontopathogenic bacteria and host inflammatory and immune responses and is the most common bacterial infection worldwide. Estimates reveal that 10-15 % of adults have advanced periodontitis, and periodontal disease can contribute to widespread oral health dysfunction and enhanced susceptibility to other systemic diseases (Pussinen et al. 2007).

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  • Streptococcal disease caused by Streptococcus iniae is without doubt one of the major bacterial diseases in fish. It has been reported to cause significant mortality in more than 12 different aquaculture species. Its distribution is worldwide in both freshwater and marine environments. The annual impact to aquaculture has been estimated to be over US$100 million. However, in the past, very few reports have described its presence in Asia.

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  • Những chứng bệnh của hoa lan được xếp vào 4 nhóm như sau: 1. Nhiễm trùng(Bacterial diseases) 2. Bệnh nấm (Fungal diseases) 3. Nhiễm vi khuẩn (viral diseases) 4. Sâu bọ Nhiễm trùng - Đốm và thối (Bacterial spot/Rot) Thối ngọn Bệnh nay do vi trùng Pseudomonas và Erwirnia làm cho chết cây và lan sang các cây khác mau lẹ. Dấu hiệu: Lá hay cuống lá có đốm hay vệt mầu nâu hay đen hay phỏng nước từ từ loang to. Hoa có đốm mầu hồng hay nâu nhạt .Rễ bị nhũn ra và ngửi có mùi hôi. ...

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  • We live in a world heavily populated by microorganisms of astonishing diversity. Most of these exist in our external environment but certain classes are normally harboured within our bodies, especially colonising mucosal surfaces. Depending on the circumstances, infectious disease can arise from organisms living exogenously or endogenously, and a knowledge of common pathogens at specific sites often provides a good basis for rational initial therapy.

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  • The Environmental, Health, and Safety (EHS) Guidelines are technical reference documents with general and industry- specific examples of Good International Industry Practice (GIIP) 1. When one or more members of the World Bank Group are involved in a project, these EHS Guidelines are applied as required by their respective policies and standards. These industry sector EHS guidelines are designed to be used together with the General EHS Guidelines document, which provides guidance to users on common EHS issues potentially applicable to all industry sectors.

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