The complete genomes of Orungo virus (ORUV), Lebombo virus (LEBV) and Changuinola virus (CGLV) were sequenced, confirming that they each encode 11 distinct proteins (VP1-VP7 and NS1-NS4). Phylogenetic analyses of cell-attachment protein 'outer-capsid protein 1' (OC1), show that orbiviruses fall into three large groups, identified as: VP2(OC1), in which OC1 is the 2nd largest protein, including ...

Background:Nowadays, one of the main challenges of the blood transfusion organization is the procurement, distribution, and monitoring of the appropriate use of blood and its products. Therefore, the aim of this study was to investigate the prevalence of Transfusion Transmitted Infections (TTIs) including human immunodeficiency virus (HIV+), hepatitis B virus (HBV+), and hepati...

One question that is well known to persons working with food virology, and especially noroviruses, is “How important are these viruses, actually?” Frequently you feel somewhat uneasy when you start to reply, talking about the “trivial illness” of gastroenteritis, continuing on to the economic impact caused by the huge number of cases, and fi nally ending up admitting that you really do not know...

The procedure described permits comparison of polyelectrolytes for their ability to flocculate food solids and thus enable filtration for recovery of food-borne viruses.

background & objectives: blood-borne viral diseases represent one of the most potentially serious threats to healthcare workers & laboratory staff and since they can be asymptomatic for many years their true prevalence in medical staff have not been clearly determined. this study was carried out to determine the rate of seropositivity for hepatitis b & c viruses & hiv in the laboratory staff of...

Background. Blood-borne viral infections like viral hepatitis are highly prevalent in Pakistan. There is also a potential threat of human immunodeficiency virus (HIV) spread in the country. Health care workers (HCWs) are a high risk population for acquiring such viral infections and potential spread to the patients. This study aimed to determine the frequency of three blood-borne viruses: HCV, ...

Mosquito-borne viruses cause significant levels of morbidity and mortality in humans and domesticated animals. Maintenance of mosquito-borne viruses in nature requires a biological transmission cycle that involves alternating virus replication in a susceptible vertebrate and mosquito host. Although the vertebrate infection is acute and often associated with disease, continual transmission of th...

OBJECTIVE To assess obstetricians' current antenatal screening practices for blood-borne viruses (hepatitis B, hepatitis C and HIV) and how they manage pregnant women infected with a blood-borne virus. DESIGN AND PARTICIPANTS National cross-sectional survey conducted between September 2002 and January 2003. All obstetricians (n = 767) registered with the Royal Australian and New Zealand Colle...

background human t-lymphotropic virus type i (htlv-i) is one of the health threatening problems in endemic areas and can be transmitted by different routes such as blood transfusion. in order to correct chronic anemia in thalassemia subjects, they may need to get blood units per month. thus, they are at risk of infection with blood-borne viruses such as htlv-i. objectives in the present study, ...

The gene encoding the envelope glycoprotein of Omsk haemorrhagic fever (OHF) virus was cloned and sequenced. A freeze-dried preparation of infected suckling mouse brain suspension was used as the source material for viral RNA. The derived cDNA was amplified using the polymerase chain reaction and the cloned DNA sequenced by dideoxynucleotide sequencing. Alignment of the OHF virus sequence with ...