TORONTO (AP) — Nova Scotia's chief public health officer says the east coast Canadian province has four confirmed cases of swine flu. , E9 K" }+ T( | ; T/ U0 p8 w% P2 m1 `! e+ x rChief 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. ; F# o" N; J) |, q+ W5 q4 R' \: k& h2 \/ T
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.". K. r; t7 z9 c8 K$ F
. C* ^7 j9 v7 ^. o" `Mexico's health minister says the disease has killed up to 86 people and likely sickened more than 1,400 since April 13.8 s. m0 y5 ?2 K
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.