TORONTO (AP) — Nova Scotia's chief public health officer says the east coast Canadian province has four confirmed cases of swine flu. 4 z' K* Q1 q+ I2 Z 4 V; v2 G* q) C/ w- W# MChief Public Health officer Dr. Robert Strang says Sunday four students from King's-Edgehill School in Nova Scotia ranging in age from 12 to 17 or 18 are recovering. All of them had what he describes as "very mild" cases of the flu. $ b" s2 _6 V# G( R7 D5 i' [. k ! u% K2 j \5 h$ @Canadian officials are planning a briefing today in Ottawa on the swine flu situation, which the World Health Organization has declared to be a "public health emergency of international concern." / H5 Q" f k/ v- Q8 H+ f& a" i" L' o8 O+ g4 K
Mexico's health minister says the disease has killed up to 86 people and likely sickened more than 1,400 since April 13.- _2 y+ k2 B4 L$ q7 {! c- ]5 W& E* v
Swine Influenza (swine flu) is a respiratory disease of pigs caused by type A influenza that regularly cause outbreaks of influenza among pigs. Swine flu viruses do not normally infect humans, however, human infections with swine flu do occur, and cases of human-to-human spread of swine flu viruses has been documented.