Tag Archives: infection

Cell-to-cell transmission of retroviruses

Retroviruses, such as HIV, that are already within cells are more easily transmitted when they spread through direct contact between cells than if they are floating free in the bloodstream. Researchers have recorded video of virus activity within cells that … Continue reading

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Toxins for microbial attack and plant defence

Millions of years of coevolution of plants and microbial pathogens have shaped both the abilities of microbial pathogens to overcome plant disease resistance and the abilities of plants to cope with microbial invasion. Phytopathogens from different taxonomic origins secrete structurally … Continue reading

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Virus incubation periods

Acute respiratory viruses cause substantial morbidity and mortality worldwide. Lower respiratory-tract infections are the leading cause of communicable disease death and among the top five contributors to disability-adjusted life years. Viruses are the primary cause of lower respiratory-tract infections in … Continue reading

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One virus particle can be enough to cause infection

In the vast majority of systems, it is unknown how many individual pathogens are required to cause infection of a host organism. Estimates of this number are necessary to predict the likelihood that hosts are infected by multiple genotypes, and … Continue reading

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Immunity to Burkholderia pseudomallei

Melioidosis, which can present as an acute septic illness or as a chronic low-grade infection, was first described in Burma more than 100 years ago. Largely due to its recognition as a biological threat agent, current knowledge on melioidosis, caused … Continue reading

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Oral sex causes throat cancer

A study conducted by Johns Hopkins University in the USA suggests that Human Papillomavirus (HPV) poses a greater risk in contracting cancer than smoking or alcohol. The study of 300 people also found that that those with more than six … Continue reading

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Pathogenesis and prevention of dengue virus infection

The spread of dengue (DEN) worldwide combined with an increased severity of the DEN-associated clinical outcomes has made this mosquito-borne virus of great global public health importance. This article reviews the latest findings in the field of DEN pathogenesis, vector … Continue reading

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Antibodies against persistent viruses

Persistent viruses such as hepatitis C virus (HCV) or HIV can defeat the body’s defense system and cause devastating epidemics worldwide. Recent attempts at vaccinating against HIV have relied on the induction of specific antiviral killer T lymphocytes but have … Continue reading

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Stanley Prusiner at the SGM: Prion Biology and Diseases

Stanley Prusiner was awarded the first ever SGM Prize Medal (to a microbiologist of international standing whose work has had a far-reaching impact beyond microbiology) at the SGM Spring meeting at Harrogate on 1st April 2009. MicrobiologyBytes was there and … Continue reading

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