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BRASILIA (Reuters) - The largest city in Brazil’s Amazon has closed bars and river beaches to contain a fresh surge of coronavirus cases, a trend that may dash theories that Manaus was one of the world’s first places to reach collective, or herd, immunity. FILE PHOTO: People enjoy at a bar after a Manaus City Hall decree that determined the closure of bars and restaurants was issued, amid the coronavirus disease (COVID-19) outbreak in Manaus, Brazil, September 25, 2020. [...]

"It's a bit premature to speak of herd immunity from a new disease that we are still learning about, but we are seeing people with mild cases that appear to have anti-body immunity that can last for 2-3 months," he said. The Sao Paulo University study said coronavirus antibodies appeared to wane after just a few months, which could explain the resurgence in Manaus. The largest city in Brazil's Amazon has closed bars and river beaches to contain a fresh surge of coronavirus [...]

Researchers have demonstrated that saliva can be used for early detection of the risk of diseases associated with surplus body fat, an advance that may lead to better methods to diagnose chronic obesity-related ailments. The study, published in the journal Nutrition Research, identified uric acid in saliva as a reliable signature chemical to predict body fat percentages in teenagers. "The idea is to enable saliva to be more widely used as an alternative biological sample for clinical [...]

Researchers have identified for the first time the mechanism by which chronic stress causes hair colour loss, an advance that may lead to the development of novel drugs which can prevent the whitening of hair. In the study, published in the journal Nature, the scientists induced intense pain in special black mice for several weeks using a substance called resiniferatoxin, and turned the animals' fur completely white. "For the longest time it's been said that stress makes the hair [...]

Washington DC , Nov 13 : If you take too much stress while driving here's the news for you. Stress during driving is a risk factor for the development of cardiovascular diseases. A new study by Brazilian researchers suggest that cardiac overload due to the stress of driving in heavy traffic can be attenuated by listening to instrumental music. The results of the study were published in the journal Complementary Therapies in Medicine. Researchers at the University of Sao Paulo (USP) in [...]

A new species of fungus gnat (Keroplatidae) has been discovered by a group of Brazilian researchers. According to them, the new species' larvae emit blue light. The small fly inhabits an Atlantic Rainforest reserve in São Paulo State. This is the first record of a blue bioluminescent species in the Neotropics. Many bioluminescent insects and fungi have been studied in the region, but all emit green, yellow or red light. The new species has been named Neoceroplatus betaryiensis and is [...]

An international team of researchers have found that a novel compound can halt the growth of the parasite Plasmodium falciparum known to cause malaria -- the deadly mosquito-borne disease which kills nearly 500,000 people every year across the world. The study, published in the journal Science , noted that the compound called TCMDC-135051 developed by the multinational pharmaceutical company GlaxoSmithKline can eliminate the mosquito-borne parasite in all the stages of its lifecycle. The [...]

Call it a shock discovery: DNA research has revealed two entirely new species of electric eel in the Amazon basin, including one capable of delivering a record-breaking jolt. The findings are evidence, researchers say, of the incredible diversity in the Amazon rainforest — much of it still unknown to science — and illustrate why it is so important to protect a habitat at risk from deforestation, logging and fires. “In spite of all human impact on the Amazon rainforest in the [...]

The United Nations University (UNU) is pleased to announce the appointment of six new members to the governing United Nations University Council: Dr Denisa Ciderová (Slovakia), Vice-Rector for Research and Doctoral Studies, University of Economics in Bratislava Dr Comfort Ero (United Kingdom), Program Director, Crisis Group Dr Xin Fang (China), President & Professor, School of Public Policy and Management, University of Chinese Academy of Sciences Professor Adam Habib (South [...]