New pandemic strains of influenza virus typically are more virulent than those that have been circulating longer, presumably because they present novel antigens to hosts. In this new study ...

As the genomic sequences of viruses, fungi, and bacteria become ... Having considered some of the virulence factors encoded by E. coli, take another look at Figure 1. The second-largest circle ...

much remains unknown about why some influenza strains are highly transmissible and why certain flu viruses cause such severe disease. Less frequently, however, new and particularly virulent ...

Bird flu appears to be rising in the U.S., but only among people exposed to infected animals — namely, cows and poultry.Since ...

This reassortment can create a virus that contains features of both parent viruses, which could make it more transmissible ...

The newly identified ST164 strain of antibiotic-resistant CRAB bacteria is spreading in Asia, posing a global health risk due to high resistance and limited treatment options. Rigorous infection ...

What if infections of respiratory syncytial virus, known as R.S.V., peak at unusual levels, as they did in the 2022-23 season? What if the new strain of mpox, which is especially virulent ...

While the infection caused by the Marburg virus is slightly less virulent than that of the Ebola virus, it presents with the same symptoms, in other words, fever followed by vomiting, diarrhea and ...

TOKYO -- The H5N1 highly pathogenic avian flu virus may be more infectious to humans if passed on from cattle than directly from birds, a team of researchers in Japan has announced. The team led ...

This useful study examines the function of the rnc gene, which encodes the RNase III ribonuclease, as it relates to virulence of Salmonella Enteritidis. The authors demonstrate that the rnc gene is ...

Experts are worried amid the outbreak of an "eye-bleeding disease" that has spread to Europe. There have been nine deaths and 27 total cases from an incurable Ebola-like virus in Rwanda, Africa.

The manuscript explores how bacterial evolution in the presence of lytic phages modulates b-lactams resistance and virulence properties in methicillin-resistant Staphylococcus aureus (MRSA). The work ...