Chile's Health Ministry said on Monday that the number of A/H1N1 flu infections in the country has risen to four, since two first cases were reported over the weekend.
Three of the sick are women who arrived on Saturday from the Dominican Republic and the fourth is a six-year-old boy who contracted the disease in unknown circumstances.
The ministry's head of epidemiology, Dr. Claudia Gonzalez, told reporters that the three women have been hospitalized in the capital, are now receiving treatment and in stable conditions.
Meanwhile, the child is at home and healthy, while his family has been quarantined and is receiving prophylactic treatment.
"One of the containment measures is closing the child's school for seven days while the Ministry checks the place, to evaluate the situation and apply the corresponding epidemiological cordon," said Gonzalez.
Gonzalez said it was unlikely that the disease had spread to the community, and said that other educational institutions should continue their activities as normal.
"The Ministry believes this is an isolated case and that there is no evidence of person-to-person transmission to date," Gonzalez said.