About 48 percent of the New Orleans water system was installed before 1940, making many pipes more than 80 years old, according to a report from the local news website NOLA. Lead was a common pipe material until the U.S. banned it in 1986. Houston, US | Xinhua | Salt …
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New research boosts search for cure for HIV/AIDS Fresh data from several small trials presented at an AIDS conference on July 3 provides encouraging news in the quest for a cure for HIV, scientists said. Giving an update in an eagerly-followed trial, researchers said an HIV-positive infant in Mississippi who …
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