Causes of conjunctivitis. Causes of conjunctivitis include: Bacterial or viral infection. Infection with a virus that may also cause a fever and sore throat. Sexually transmitted infections (STIs), including chlamydia and gonorrhoea. Irritants such as chlorine from swimming pools, shampoo, smoke, fumes or a loose eyelash.
India is on track to become the worldâs most populous nation in less than a decade â or six years earlier than previously thought, according to the U.N. With 1.38 billion people compared with Indiaâs 1.31 billion, China is currently the worldâs most populous country. Figures for both countries are expected to swell to around 1.4 billion by 2022, at which point Indiaâs population is likely to expand beyond Chinaâs.
As of July, 2014, China's population is estimated at 1,355,692,576. In 2011, the urban population in China was down to 50.6 percent with a 2.85 percent average annual growth rate from 2010 to 2015. The most densely populated cities in China include Shanghai, Beijing, Guangzhou and Shenzhen.Learn more about East Asia.