• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Probiotics or pathogens?
Probiotics or pathogens?

... Population projections estimate that these cats give birth to roughly 180 million kittens per year3. Humane efforts focusing on high-volume adoption are placing record numbers of healthy kittens into homes. However, the death or euthanasia of ailing kittens remains a national tragedy4-11. Each year ...
modeling seasonality and viral mutation in an influenza pandemic
modeling seasonality and viral mutation in an influenza pandemic

... of seasonality and mutation variables reproduced 3-wave epidemic curves. Our results may offer insights to public health officials on how to predict the subsequent course of an epidemic or pandemic based on early and emerging viral and epidemic characteristics and what data may be important to gathe ...
Mastitis - Background and Best Management Practices
Mastitis - Background and Best Management Practices

... massive response occurs that leads to systemic shock-like symptoms. In other cases, a more chronic response may occur, bacteria multiply and the immune system is continuously activated. Chronic infections result in long term high somatic cell counts in milk. It has been suggested that intra-cellular ...
HIV-related skin conditions
HIV-related skin conditions

... infections are usually in the setting of advanced HIV disease or immune reconstitution inflammatory syndrome.7 In children with HIV who develop chickenpox, there is a higher risk of subsequently developing herpes zoster and they are more likely to have recurrent episodes. 8 ...
Data–model fusion to better understand emerging pathogens and
Data–model fusion to better understand emerging pathogens and

... models of ecological processes. The study of infectious disease has depended on strategies for integrating patterns of observed disease incidence with mechanistic process models since John Snow first mapped cholera cases around a London water pump in 1854. Still, zoonotic and vector-borne diseases in ...
Review Immunoglobulins in Defense, Pathogenesis, and Therapy of Fungal Diseases
Review Immunoglobulins in Defense, Pathogenesis, and Therapy of Fungal Diseases

... The past two decades have been momentous in advancing our understanding of the role of antibody-mediated immunity (AMI) in host defense against fungi, and they have brought about a paradigm shift in our thinking on this question. Prior to the 1990s, AMI was considered to be irrelevant in host defens ...
Pertussis
Pertussis

COMMITTEE ON INFECTIOUS DISEASES ; originally published online September 2, 2013; Pediatrics
COMMITTEE ON INFECTIOUS DISEASES ; originally published online September 2, 2013; Pediatrics

... date because influenza is unpredictable. Protective immune responses ...
スライド タイトルなし
スライド タイトルなし

... • Genital chlamydial infection is the most common STDs in both sex. • Half of male urethritis was caused by C. trachomatis. • Both of gonococcus and chlamydia were detected concomitantly in 2030% male urethritis. • C. trachomatis was concomitantly detected in the pharynx in 10-20% of female genital ...
Pass It On! Disease Competition
Pass It On! Disease Competition

... immunity who share a house with an infected person will catch it. The incubation period (the period between infection and the appearance of signs of a disease) usually lasts from 412 days, before symptoms develop. Once symptoms appear, infected people remain contagious until 35 days after the char ...
Chapter 13
Chapter 13

... HIV/AIDS • Cause: HIV virus attacks the helper T cells (CD4) and macrophages of the immune system • Methods of transmission: – Sexual contact; direct contact involving the exchange of bodily fluids (blood, semen, vaginal secretions) – Sharing of hypodermic needles – Through infected blood products ...
A protein with simultaneous capsid scaffolding and dsRNA
A protein with simultaneous capsid scaffolding and dsRNA

... IBDV has a polyploid bipartite dsRNA genome (segments A and B of 3.2 and 2.8 kbp, respectively) enclosed within a single-layered ~70 nm-diameter capsid with T =  13 l geometry9,10. The two dsRNA ...
MODELING EPIDEMICS ON NETWORKS OF CONNECTED
MODELING EPIDEMICS ON NETWORKS OF CONNECTED

... of many diseases and many extensions to the KM model have been proposed that model different disease progressions. For example, SIS models (Susceptible Infectious Susceptible) have been used to model the spread of sexually transmitted diseases, which can and are often contracted multiple times by in ...
For correspondence. E-mail: tbosch@zoologie.uni.kiel
For correspondence. E-mail: [email protected]

... environmental stress and start the lytic part of the viral lifecycle. Environmental induced changes in the life cycle of viruses characterised by a dormant state and active proliferation of viral particles is known from different human pathogenic viruses belonging to Herpes- and Poxviridae, both als ...
Smallpox Infection Control
Smallpox Infection Control

... prodromal phase were generally not considered infectious. However, variola virus is now known to be shed from oral lesions during the 1-2 days of fever preceding rash onset. ...
Read Me - hcaf.biz
Read Me - hcaf.biz

... restenosis and inflammatory aortic disease (Presti et al 1998, Jones 2012e). Without listing the references, it should be noted that clinical case reports for CMV infection as the primary cause of both fatal and non-fatal hospital admission are becoming increasingly common as awareness to the subtle ...
Vampirism and Infection Theories in Bram Stoker`s
Vampirism and Infection Theories in Bram Stoker`s

... diseases of Bram Stoker’s time. In the 19th century, an outbreak of sexually transmitted diseases such as syphilis was seen as a consequence of the rise in prostitution (Jang). However, these diseases “were not exclusively contained to female prostitutes and males who purchased their services, but a ...
Incidence and sources of native and prosthetic survey
Incidence and sources of native and prosthetic survey

... invasive procedure at a distant site occurred in six cases. Bacterial arthritis after an urological intervention developed in a second case: an osteoarthritic knee became infected after the placement of a catheter and lavage of the bladder while taking antibiotics for urinary tract infection. In eac ...
management of - University of Mississippi Medical Center
management of - University of Mississippi Medical Center

... blood or other potentially infectious materials and are capable of releasing these materials during handling; contaminated sharps; and pathological and microbiological wastes containing blood or other potentially infectious materials. “Other Potentially Infectious Materials (OPIM) means (1) The foll ...
Getting under the Skin: The Immunopathogenesis of Streptococcus
Getting under the Skin: The Immunopathogenesis of Streptococcus

... to severity of tissue infection. Strikingly, biopsy specimens obtained as late as 20 days after diagnosis of infection and initiation of intravenous antibiotics still contained bacteria [14]. Bacterial viability assessment confirmed the presence of viable bacteria in the biopsy specimens, despite th ...
Infection Control and Extracorporeal Life Support
Infection Control and Extracorporeal Life Support

... It  is  the  recommendation  of  the  task  force  that  ECMO  teams  take  this  data  into   consideration  in  choosing  empiric  antibiotics  for  patients  on  ECMO  with   suspected  or  presumed  infections.    In  addition,  bec ...
Murine Cytomegalovirus Particle Types in Relation to Sources of
Murine Cytomegalovirus Particle Types in Relation to Sources of

... of infectivity could be recovered by washing the 450 nm membrane in PBSA after filtration. The 50% loss may indicate irreversible adsorption of particles to the millipore membrane, or it could be a result of virion damage by the turbulence of fluid passing through filter pores. In the case of CCV ne ...
Resistance to protease inhibitors in a model of HIV-1
Resistance to protease inhibitors in a model of HIV-1

... antiretroviral therapy can no longer control the virus (Wheeler et al. 2010). Many mathematical models have been developed to describe drug resistance (Shiri and Welte 2008; Shi et al. 2008; Huang et al. 2010; von Wyl et al. 2012; Wagner and Blower 2012; Heye et al. 2012), but such models have focus ...
Ulcerative Lesions Of The Oral Cavity October 2002
Ulcerative Lesions Of The Oral Cavity October 2002

... ulcerative lesions patients will typically complain of sore throat. Supportive therapy is all that is required for treatment of Coxsackie virus infections. ...
MODULE 13 GUIDELINES FOR ANTIRETROVIRAL THERAPY (ART
MODULE 13 GUIDELINES FOR ANTIRETROVIRAL THERAPY (ART

... numbers of available drugs and drug combinations, and because of the toxicity associated with drug therapy. In addition, some antiretroviral drugs may not be used in combination with drugs commonly used for treating infections such as tuberculosis. The monitoring of response to therapy, currently ba ...
< 1 ... 81 82 83 84 85 86 87 88 89 ... 679 >

Hepatitis B



Hepatitis B is an infectious disease caused by the hepatitis B virus (HBV) which affects the liver. It can cause both acute and chronic infections. Many people have no symptoms during the initial infection. Some develop a rapid onset of sickness with vomiting, yellowish skin, feeling tired, dark urine and abdominal pain. Often these symptoms last a few weeks and rarely does the initial infection result in death. It may take 30 to 180 days for symptoms to begin. In those who get infected around the time of birth 90% develop chronic hepatitis B while less than 10% of those infected after the age of five do. Most of those with chronic disease have no symptoms; however, cirrhosis and liver cancer may eventually develop. These complications results in the death of 15 to 25% of those with chronic disease.The virus is transmitted by exposure to infectious blood or body fluids. Infection around the time of birth or from contact with other people's blood during childhood is the most frequent method by which hepatitis B is acquired in areas where the disease is common. In areas where the disease is rare, intravenous drug use and sexual intercourse are the most frequent routes of infection. Other risk factors include working in healthcare, blood transfusions, dialysis, living with an infected person, travel in countries where the infection rate is high, and living in an institution. Tattooing and acupuncture led to a significant number of cases in the 1980s; however, this has become less common with improved sterility. The hepatitis B viruses cannot be spread by holding hands, sharing eating utensils, kissing, hugging, coughing, sneezing, or breastfeeding. The infection can be diagnosed 30 to 60 days after exposure. Diagnosis is typically by testing the blood for parts of the virus and for antibodies against the virus. It is one of five known hepatitis viruses: A, B, C, D, and E.The infection has been preventable by vaccination since 1982. Vaccination is recommended by the World Health Organization in the first day of life if possible. Two or three more doses are required at a later time for full effect. This vaccine works about 95% of the time. About 180 countries gave the vaccine as part of national programs as of 2006. It is also recommended that all blood be tested for hepatitis B before transfusion and condoms be used to prevent infection. During an initial infection, care is based on the symptoms that a person has. In those who develop chronic disease antiviral medication such as tenofovir or interferon maybe useful, however these drugs are expensive. Liver transplantation is sometimes used for cirrhosis.About a third of the world population has been infected at one point in their lives, including 240 million to 350 million who have chronic infections. Over 750,000 people die of hepatitis B each year. About 300,000 of these are due to liver cancer. The disease is now only common in East Asia and sub-Saharan Africa where between 5 and 10% of adults have chronic disease. Rates in Europe and North America are less than 1%. It was originally known as serum hepatitis. Research is looking to create foods that contain HBV vaccine. The disease may affect other great apes as well.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report