When the growth kinetics of immature hepatitis A virus provirions and mature virions were monitored, distinct eclipse phases were noted for both types of particles. Strikingly, uncoating of virions occurred around 4 h postinfection, while uncoating of provirions occurred predominantly between 8 and 10 h postinfection. It is proposed that the heterogeneous mixture of infectious hepatitis A virus...

Although jaundice was described in the medical writings of Mesopotamia during the Babylonian period, progress in the understanding of infectious hepatitis did not occur until the second world war. Investigations carried out during outbreaks of jaundice in the armed Forces led to the establishment of the viral aetiology of the disease and also confirmed that there were two distinct epidemiologic...

Bleeding due to the habit of removing the cuticles of the finger and toes nails, without appropriate sterilization of instruments can be an important factor of contamination by hepatitis B and C viruses. The objectives of this study were to verify the use of standards on biosafety in the routine work of manicurists and/or pedicurists located in São Paulo, Brazil; know the level of information t...

One of the important medical problems is infectious diseases such as HIV and hepatitis which annually causes the death of many people. So it is important to study infectious diseases parametric models. In this paper, we investigate differential equations system of HIV and hepatitis (with delay and without delay) from the stability and codimension-one bifurcation point of view. We show that thei...

Sera from 87 patients with acute sporadic viral hepatitis were tested for the presence of the Australia-SH antigen. Forty-three were positive by the complement-fixation test, but only 24 of these reacted in the gel-diffusion test. The antigen was equally distributed in infectious and serum hepatitis. The relationship of naturally occurring antigen-positive hepatitis to the Willow-brook MS-2 typ...

Viral hepatitis is a general category for a diverse but related group of infectious agents that are extremely common in Sub-Saharan Africa in general and Cameroon in particular. Hepatitis viruses B, C, and D can all be transmitted via sexual contact. Percutaneous and premucosal exposure to infective body fluids e.g. blood, saliva, semen, and vaginal fluids, are primary transmission routes. Hepa...

BACKGROUND Sexually transmitted infections (STIs) are a diverse group of infections caused by widely differing microorganisms (viruses, protozoa, bacteria, yeasts, ectoparasites and even a nematode), with transmission from person to person by sexual contact as its common characteristic. In all societies, sexually transmitted infections rank among the most common infectious diseases. These patie...

Prototype adenovirus 3 and adenovirus SC8, which was found in feces from a patient with infectious hepatitis and which was classified as adenovirus 3 by standard procedures, were compared by chromatography and immunodiffusion techniques. When the radioactive adenovirus moiety in SC8 had been separated from other radioactive components of tissue culture by gel filtration, a smaller infectious ag...

GB virus C (GBV-C or hepatitis G virus) is a recently described flavivirus which frequently leads to chronic viremia in humans. Although GBV-C is associated with acute posttransfusion hepatitis, it is not clear if the virus is pathogenic for humans. We constructed a full-length cDNA from the plasma of a person with chronic GBV-C viremia. Peripheral blood mononuclear cells (PBMCs) transfected wi...

BACKGROUND The hepatitis B, hepatitis C, human immunodeficiency viruses and Treponema pallidum are important causes of infectious diseases concern to public health. METHODS Between 2010 and 2014, we used an automated chemiluminescence microparticle immunoassay to detect the hepatitis B, hepatitis C, and human immunodeficiency viruses as well as Treponema pallidum (the rapid plasma regain test...