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T-cell immunity exists six months after COVID-19 infection, study finds

T-cell immunity exists six months after COVID-19 infection, study finds

Technology
People still have a detectable immune response six months after being infected with COVID-19, according to the first study of its kind.The UK study found that people who had previously developed COVID-19 had raised levels of T-cells, an important back-up to antibodies in fighting infections. But the researchers, from Public Health England and the UK Coronavirus Immunity Consortium, warn that it's still not clear whether the T-cell levels were high enough to protect against re-infection.Live coronavirus updates from the UK and around the world Image: T-cells are an important back-up to antibodies in fighting infections Professor Paul Moss of the University of Birmingham, who led the Consortium, said the findings were "encouraging", but...
No 'healthy' level of alcohol consumption exists, according to new study

No 'healthy' level of alcohol consumption exists, according to new study

Health
Bad news for the 2.4 billion people around the world who drink alcohol regularly: There is no level of alcohol that is good for health, according to a new study in the journal The Lancet. Using data from the Global Burden of Diseases, Injuries, and Risk Factors Study, newer data analysis methods, and a review of previous studies, the researchers calculated the levels of alcohol consumption and the rates of alcohol-related health problems for 195 countries from 1990-2016. According to their estimates, drinking one alcoholic drink per day for one year increases the risk of developing one of the 23 alcohol-related health problems by 0.5 percent. These include cardiovascular disease, different cancers, intentional and unintentional injuries, communicable diseases, and more. Without drinking...
Study: Strong connection exists between Parkinson's and melanoma

Study: Strong connection exists between Parkinson's and melanoma

Health
SATURDAY, July 8, 2017 -- People with Parkinson's disease are about four times more likely to develop melanoma skin cancer, and conversely, people with melanoma have a fourfold higher risk of getting Parkinson's, researchers report. Although doctors have known about the connection between these diseases, they still don't know why having one increases the risk of the other."Future research should focus on identifying common genes, immune responses and environmental exposures that may link these two diseases," said study first author Dr. Lauren Dalvin, who's with the Mayo Clinic in Rochester, Minn."If we can pinpoint the cause of the association between Parkinson's disease and melanoma, we will be better able to counsel patients and families about their risk of developing one disease in ...
Water exists in two distinct liquid phases

Water exists in two distinct liquid phases

Science
June 26 (UPI) -- Water differs from other liquids in a variety of ways, many of which make it essential for life. New research has identified another unusual property: water exists in two distinct liquid phases."Water can exist as two different liquids at low temperatures where ice crystallization is slow," Anders Nilsson, a professor of physical chemistry at Stockholm University, said in a news release.Researchers used high-powered X-rays to image water at low temperatures, revealing two distinct molecular structures. Each structure proved to represent liquid phases."It is very exciting to be able to use X-rays to determine the relative positions between the molecules at different times," said Fivos Perakis, a postdoctoral researcher at Stockholm University. "We have in particular been ab...