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Showing posts with the label Viral infectious diseases

Petting zoos transmit Virulent drug-resistant bacteria to visitors

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Human infectious diseases :  Petting zoos transmit Virulent drug-resistant bacteria to visitors Petting zoos are a popular attraction around the world, allowing direct and indirect exposure of both children and adults to a diverse range of animal species. They are different from regular zoos because rather than visitors just looking at the animals, petting zoos are interactive with children visiting, holding and petting the animals. Extended spectrum beta-lactamase (ESBL) and AmpC-producing Enterobacteriaceae (AmpC-E), which are resistant to a number of commonly used antibiotics, have become a matter of great concern in both human and veterinary medicine, so understanding the likelihood of them colonizing the animals is critical to evaluating the risk that may be posed to visitors. The researchers did a survey across randomly chosen petting zoos geographically distributed throughout the world, taking samples of faecal matter as well as from the body surface (skin, fur, or ...

The Bacterial Protein promoting Cancer

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Viral Oncology :  The Bacterial Protein promoting Cancer DNA K, a protein of the bacterium mycoplasma, interferes with the mycoplasma-infected cell's ability to respond to and repair DNA damage, a known origin of cancer.  Little or no mycoplasma DnaK DNA sequences were found associated with the tumor, which was fully developed, suggesting a hit-and-run or hide mechanism of transformation, indicating that the damage is done early, but the protein may not be needed once the cancer cells are formed.                   Mycoplasmas are a family of bacteria that are associated with cancers, especially in people with HIV. Researchers utilized immune-compromised mice as a model for analyzing the effect of mycoplasma infection on the development of lymphoma. They compared how quickly non-infected immune-compromised mice developed lymphoma compared to mycoplasma-infected immune-compromised mice. The mice were infected with a strai...

Stealth virus for cancer therapy

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Viral Oncology : Stealth virus for cancer therapy Scientists have redesigned an adenovirus for use in cancer therapy. They have developed a new protein shield that hides the virus and protects it from being eliminated. Adapters on the surface of the virus enable the reconstructed virus to specifically infect tumour cells.               Viruses have their own genetic material which can infect human cells in a very specific manner. They will then reproduce as directed by their own genes but using the resources of the host cell. These properties proofs that they can fight with hereditary diseases or cancer. There are uncountable different viruses, but the human adenovirus 5, which normally causes the symptoms of a typical cold, has substantial advantages. Without any of the viral genes left, the virus cannot replicate and trigger diseases . In addition, the genome of the adenovirus is very large and does not assimilate into human chromosom...