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Chikungunya virus has caused substantial epidemics in the tropics, often with an even worse impact than dengue, but infections can also be relatively mild or even undetected. A study conducted in Brazil by researchers at the São José do Rio Preto Medical School (FAMERP) in São Paulo State shows that the virus circulated in the city silently for years. The number of cases was initially small but gradually rose in the period analyzed (2015-19). The findings underscore the [...]

WhatsApp can be a highly effective tool to help older people overcome loneliness and depression, according to the findings of a study conducted in Guarulhos, the second-largest city in São Paulo state, Brazil. An article on the study is published in the journal Nature Medicine. The co-corresponding author is Marcia Scazufca, a scientific researcher at Hospital das Clínicas (HC), the hospital complex run by the University of São Paulo's Medical School [...]

An article published in the Journal of Controlled Release details the results of a cross-border scientific collaboration that has developed an alternative for the treatment of solid tumors based on inhibition of the inflammatory tumor microenvironment (TME). Solid tumors are difficult to treat, partly owing to cells and substances in the TME that prevent drugs from penetrating and stop the patient's own immune system from combating the tumor. "These cells and molecules [...]

Brazilian researchers have discovered the COVID-19 virus in sperm up to 3 months after infection, which they say should make people think carefully about the time babies might be conceived. Details of the new study, in the journal Andrology, revealed the virus that causes COVID-19, SARS-CoV-2, can remain inside sperm for up to 3 months following hospital discharge (100-110 days after initial infection). Based on their results, the researchers from the University of São Paulo [...]

Researchers from the University of São Paulo (USP) in Brazil have discovered that the virus causing COVID-19, SARS-CoV-2, can stay in the sperm of patients for up to 110 days after initial infection. This groundbreaking study, published in the journal Andrology, suggests that people planning to have children should wait for a period after recovering from COVID-19. The study revealed that the virus, known to invade and destroy various human cells, including those in the reproductive [...]

Researchers at the University of São Paulo (USP) in Brazil have shown for the first time that SARS-CoV-2, the virus that causes COVID-19, can remain in the sperm of patients for up to 90 days after hospital discharge and up to 110 days after the initial infection, reducing semen quality. The study is reported in an article published in the journal Andrology. The authors suggest that people who plan to have children should observe a period of "quarantine" after recovering from [...]

Researchers at the University of São Paulo (USP) in Brazil have shown for the first time that SARS-CoV-2, the virus that causes COVID-19, can remain in the sperm of patients for up to 90 days after hospital discharge and up to 110 days after the initial infection, reducing semen quality. The study is reported in an article published in the journal Andrology. The authors suggest that people who plan to have children should observe a period of "quarantine" after [...]

For the first time, researchers have identified a group of neurons deep in the brain that are associated directly with compulsive eating and food craving. The discovery is reported in an article published in Nature Communications by researchers at the University of California, Los Angeles (UCLA) in the United States and the Federal University of the ABC (UFABC) in São Bernardo do Campo, São Paulo state (Brazil). The neurons are located in the periaqueductal gray, a [...]

A molecule produced naturally in the gut can help prevent and even treat influenza, according to a study reported in the journal Gut Microbes by researchers at the State University of Campinas (UNICAMP) in São Paulo state, Brazil, and Pasteur Institut in Lille, France. Experiments with mice showed a fall in levels of the molecule indole-3-propionic acid (IPA) during infection by influenza virus H3N2. The infected animals' IPA was supplemented with a synthetic [...]