A group of 150 immunization specialists from American countries met on Monday in Costa Rica to discuss vaccination strategies against the A/H1N1 flu, said the Pan American Health Organization (PHO).

Members of the PHO Advisor Technical Group (GTA), which meet biennially on disease immunization, eradication and elimination, attended the meeting.

The meeting, which will last for three days, is expected to focus on how to protect the most vulnerable groups against the A/H1N1 pandemic.

"The meeting will discuss the A/H1N1 flu vaccination recommendations, whether it should be kept a seasonal vaccination in case of a pandemic and who will be first to be vaccinated," the PHO said in a statement.

Experts from Argentina, Canada and the United States joined the delegates from the World Health Organization (WHO) and the United Nations International Children's Emergency Fund in the meeting.

(Xinhua News Agency August 25, 2009)