Human trials will start in 2018 to see if it can prevent or treat infection. Our bodies struggle to fight HIV because of the virus' incredible ability to mutate and change its appearance. These varieties of HIV - or strains - in a single patient are comparable to those of influenza during a worldwide flu season . So the immune system finds itself in a fight against an insurmountable number of strains of HIV. But after years of infection, a small number of patients develop powerful weapons called "broadly neutralising antibodies" that attack something fundamental to HIV and can kill large swathes of HIV strains. Researchers have been trying to use broadly neutralising antibodies as a way to treat HIV, or prevent infection in the first place. Antibody helps keep man's HIV at bay for 10 months The study, published in the journal Science , combines three such antibodies into an even more powerful "tri-specific antibody". Dr Gary Nabel, the chief scientific officer at Sanofi and one of the report authors, told the BBC News website: "They are more potent and have greater breadth than any single naturally occurring antibody that's been discovered." The best naturally occurring antibodies will target 90% of HIV strains. "We're getting 99% coverage, and getting coverage at very low concentrations of the antibody," said Dr Nabel.
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Massey was one of millions of people in eastern Texas who rushed to prepare for Hurricane Harvey last week, as warnings went out about the กระเป๋าสะพายข้างแบรนด์ large and powerful storm. Now a tropical storm, Harvey has brought unprecedented rain . The total (so far) of 49.2 inches that was reported in Houston's southeast Tuesday set a new national record for total rainfall from a tropical system. Water Tops Houston Dam's Spillway As Harvey Drifts Toward Louisiana Hours before Harvey made landfall as a Category 4 hurricane, Houston Public Media reported on Massey's preparations, which she said she spent nearly $5,000 to put in place. "The bags stack 11 inches high with a sheet of waterproofing 5 feet high," HPM's Marissa Cummings reported. "This surrounds her entire one-story home." But Massey's street in Meyerland was one of many in Houston that flooded badly. Describing the water levels on Tuesday, Massey wrote, "My home (4.5ft inside home, 9ft in street) and community in Meyerland and my parents' home ... and community in Memorial are completely devastated." Kristin Massey spent nearly $5,000 trying to protect her home from Hurricane Harvey. Her preparations included sandbags, waterproof barriers and drain routers. Kristin Massey via Houston Public Media hide caption Kristin Massey spent nearly $5,000 trying to protect her home from Hurricane Harvey.
For the original version including any supplementary images or video, visit http://www.npr.org/sections/thetwo-way/2017/08/29/547036574/18-000-pounds-of-sandbags-werent-enough-to-protect-this-houston-home