Nine of the recent deaths related to influenza involved patients with additoinal health risk factors such as diabetes, hypertension, morbid obesity, lung, heart or kidney disease.
Only 30 percent of the health care workers at the Costa Rican hospital with the largest concentration of deaths linked to H1N1 this season were vaccinated.
A Cuban migrant's death from the AH1N1 virus has alarmed authorities in Panama, where nearly 1,000 Cubans are stranded near the border with Costa Rica.
Max Peralta Hospital in Cartago province, Costa Rica, has confirmed that a patient died last week of complications caused by AH1N1, also known as swine flu.
