Bacterial and viral infections can cause tonsillitis. A common cause is Streptococcus (strep) bacteria. Other common causes include: 1  Adenoviruses. 2  Influenza virus. 3  Epstein-Barr virus.4  Parainfluenza viruses. 5  Enteroviruses. 6  Herpes simplex virus.he main symptoms of tonsillitis are inflammation and swelling of the tonsils, sometimes severe enough to block the airways. Other symptoms include: 1  Throat pain or tenderness. 2  Redness of the tonsils. 3  A white or yellow coating on the tonsils. 4  Painful blisters or ulcers on the throat.
Language in Laos. The official language of Laos is Lao, a tonal language closely related to Thai. Thanks to ubiquitous Thai broadcast media most Lao understand Thai fairly well, but it's worth learning a few basic expressions in Lao.
The Vietnamese Language. Vietnamese is the official language of Vietnam and is spoken throughout the country, albeit with variations of dialect. English is the second language, superseding Russian, which was dropped after the USSR collapsed. Some French is spoken, mainly by older people in the south. Many of Vietnamâs fifty-four ethnic groups speak their own language, and some Kâmer is spoken in the Mekong Delta close to the Cambodian border. New career opportunities in tourism and international trade have been a stimulus for young people to become fluent in Japanese, Chinese or Western European languages.