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San Francisco may be the next U.S. city to allow 16- and 17-year-olds to vote. Residents will vote on the matter this November.If the measure is passed, the young people would be able to participate in local elections, which usually don't have high turnout.“They've seen that by extending voting rights to people of that age, they've actually increased the level of interest and attention in local politics, not only in those who are newly able to vote, but among their parents and their communities as well,” said Brandon Klugman, Vote 16 Campaign Manager at Generation Citizen.Critics question if teens are mature enough and educated enough to vote.Researchers in Austria, where the national voting age starts at 16, found teens are not likely to be less educated or less motivated to participate in voting.The campaign Vote 16 USA says teens are not likely to make rushed or stressed decisions when it comes to voting.They say teens are more likely to be in a stable environment, where they're surrounded by family, peers, and educators.“In a stable environment, it's great to establish the habit of voting, whereas at 18 on the other hand, most folks are in some sort of intense transition, whether that's joining the workforce, starting college, moving away from home, or going after some sort of transition,” said Klugman.Advocates say this will help in creating a life-long habit of voting.Oakland, California, is considering a similar measure, but it would only allow young voters to participate in school board elections.Several cities in Massachusetts and Maryland have passed similar measures. Something like this was also considered in Washington D.C. but did not pass. 1689

SEATTLE (AP) — Researchers say a London man appears to be free of the AIDS virus after a stem cell transplant. It's the second such success including "Berlin patient" Timothy Ray Brown.Such transplants are dangerous and have failed in other patients. The new findings were published online Monday by the journal Nature.The London patient has not been identified. He was diagnosed with HIV in 2003. He developed cancer and agreed to a stem cell transplant to treat the cancer in 2016.His doctors found a donor with a gene mutation that confers natural resistance to HIV.The transplant changed the London patient's immune system, giving him the donor's HIV resistance. 674

Scientists have accidentally developed a plastic-eating enzyme that may be used to combat one of the world's worst pollution problems.Researchers from Britain's University of Portsmouth and the US Department of Energy's National Renewable Energy Laboratory (NREL) made the discovery while examining the structure of a natural enzyme found in a waste recycling center a few years ago in Japan.They say the enzyme, Ideonella sakaiensis 201-F6, is able to "eat" polyethylene terephthalate, PET, which was patented as a plastic in the 1940s and is used in millions of tons of plastic bottles. 596

Scientists are reporting that the antibodies people make to fight the new coronavirus do not fade quickly. The new study is the most extensive work yet on the immune system’s response to the virus and is good news for efforts to develop vaccines. The report published Tuesday in the New England Journal of Medicine. It was based on tests on more than 30,000 people in Iceland. It found antibodies lasted for at least four months after diagnosis. The study also found that more severe cases of the coronavirus led to a stronger immune response to the virus."Among recovered persons, antibody levels are higher in older persons and in those more severely affected by SARS-CoV-2 infection," according to the research. Independent experts say if a vaccine can spur production of long-lasting antibodies like that, it gives hope that immunity may not be fleeting. That's what some smaller studies previously suggested.While the research was promising, it did also find that Icelanders are vulnerable to a second wave of the coronavirus even with the number of potentially immune citizens. 1092

SANTEE, Calif. (KGTV) — San Diego Sheriff's deputies are investigating a possible threat made against West Hills High School late Monday.In a letter to parents, West Hills Principal Robin Ballarin said staff was made aware of the threat Monday concerning a student remark that referenced a possible act of violence.The 15-year-old student has been identified, school officials say.No weapon or written threats were found in connection with the student, deputies said.The remark was reportedly made during class at 10:30 a.m., according to deputies, who called the comment "generic." Law enforcement and school officials were notified at 4:45 p.m.Ballarin said the threat was dealt with immediately by law enforcement and that there was no concern at this time."We want to assure all in our school community of our unwavering commitment to safety and our immediate, thorough, and proactive response," Ballarin's letter read.If anyone has any public safety concerns, they can report a crime or issue to SDSO at 858-565-5200. 1030