By Laila Kearney NEW YORK (Reuters) -Oil rose on Tuesday on hopes for a loosening of China’s strict COVID-19 controls, but concerns that OPEC+ would keep its output unchanged at its upcoming meeting limited gains. Brent crude futures were up 41 cents at $83.60 a barrel by 1:25 p.m. EST (1825 GMT). U.S. West Texas Intermediate (WTI) crude futures were up $1.01, or 1.3%, at $78.25 a barrel. Chinese health officials said the country plans to speed up COVID-19 vaccinations for elderly people, aiming to overcome a key stumbling block in efforts to ease unpopular “zero-COVID” curbs. “The prospect of…