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.
Lao Language. Lao language, or simply referred to as Lao, is the official language of Laos or Lao PDR. It is the primary language of the Lao people, and is also spoken in the northeast of Thailand, where it is referred to as Isan language. As most ethnic groups in Laos have their own dialects, Lao is an important second language for them as a central language to communicate with outsiders.