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.
Geography. A landlocked nation in Southeast Asia occupying the northwest portion of the Indochinese peninsula, Laos is surrounded by China, Vietnam, Cambodia, Thailand, and Burma. It is twice the size of Pennsylvania.Laos is a mountainous country, especially in the north, where peaks rise above 9,000 ft (2,800 m).Dense forests cover the northern and eastern areas. The Mekong River, which forms the boundary with Burma and Thailand, flows through the country for 932 mi (1,500 km) of its course.t is twice the size of Pennsylvania. Laos is a mountainous country, especially in the north, where peaks rise above 9,000 ft (2,800 m). Dense forests cover the northern and eastern areas. The Mekong River, which forms the boundary with Burma and Thailand, flows through the country for 932 mi (1,500 km) of its course.