Vasovagal syncope is the most common cause of transient loss of consciousness. The vasovagal reaction happens when a person faints because his/her body overreacts to certain triggers, such as the sight of blood, extreme emotional distress or physical pain. In general, The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly.
Adenoviruses are a group of common viruses that infect the lining of your eyes, airways and lungs, intestines, urinary tract, and nervous system. In general, adenoviruses are common causes of fever, coughs, sore throats, diarrhea and conjunctivitis. Adenoviruses are medium-sized (90–100 nm), nonenveloped (without an outer lipid bilayer) viruses with an icosahedral nucleocapsid containing a double stranded DNA genome. Their name derives
Breakthrough brings Temple researchers and their collaborators closer to a cure for human HIV infection Taking a major step forward in HIV research, scientists at the Lewis Katz School of Medicine at Temple University have successfully edited SIV – a virus closely related to HIV, the cause of AIDS –
New call to action highlights dual threat of influenza and COVID-19 for US adults with chronic health conditions. The National Foundation for Infectious Diseases (NFID) issued a new Call to Action report detailing the risks of co-infection with influenza (flu) and COVID-19 in adults with chronic health conditions, and the
New drill core shows a boom-bust landscape in the east African rift valley at a defining moment in human evolution, technology and culture. For hundreds of thousands of years, early humans in the East African Rift Valley could expect certain things of their environment. Freshwater lakes in the region ensured
A new study shows that the body size of the iconic gigantic or megatooth shark, about 15 meters (50 feet) in length, is indeed anomalously large compared to body sizes of its relatives. Formally called Otodus megalodon, the fossil shark that lived nearly worldwide roughly 15-3.6 million years ago is
Antibody-dependent enhancement (ADE) or “immune enhancement” of viral entry has been observed for many viruses and is a major concern for vaccine development and antibody-based drug therapies. ADE occurs when antibodies from a previous infection or vaccination facilitate viral entry into host cells and enhance viral infection in these cells.
Researchers have discovered that a fungal virus (also called a mycovirus) can convert deadly fungal pathogens into beneficial fungus in rapeseed plants. Once transformed, the fungus boosts the plant’s immune system, making the plant healthier and more resistant to diseases. These findings, published on September 29 in the journal Molecular Plant,
Discovery may indicate modern humans and Neanderthals lived in the area concurrently Modern humans arrived in the westernmost part of Europe 41,000 – 38,000 years ago, about 5,000 years earlier than previously known, according to Jonathan Haws, Ph.D., professor and chair of the Department of Anthropology at the University of