Reuters / Benoit Tessier
A virus, previously thought to live only in algae in rivers and lakes, has been found in the throats of healthy people. The infected showed specific brain activities to be slower than of those without the virus.
The study outlining the discovery was carried out by Scientists at the Johns Hopkins Medical School and the University of Nebraska (UNL) and published in the Proceedings of the National Academy of Sciences (PNAS) journal in October.
The scientists were busy with another study, when they found the DNA of the chlorovirus Acanthocystis turfacea chlorella virus 1 (ATCV-1) in the throats of humans. According to the study, such chloroviruses as ATCV-1 have not been previously shown to infect humans or to be part of the human virome.
Following a series of tests, scientists found that out of the 92 healthy people 40 infected with the virus. Moreover, those infected performed 10 percent worse in tests requiring visual processing.
For example, people with the virus scored about nine points lower on a test that measured how quickly they could draw a line between sequentially numbered circles on a piece of paper and seven points lower on tests measuring attention.
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