Avian Flu virus (H5N1) was first identified in 1997, where almost all H5N1 human cases have been contracted through contact with live or dead birds.
The research has caused a storm of controversy and divided scientists, with some saying it should never have been carried out.
Scientists have developed a vaccine that could end the need for annual winter flu injections.
In a tropical country like the Philippines, abrupt changing of weather conditions not yet in time for dry to wet season or vise versa is uncommon. Out of the blue, people may soon find out that they have the colds or the flu virus to contend with them.