Vietnam Map

I am noticing a correlation with the green postmark and the green thumbtack. Right now, the green postmark is mostly indicating increased hospitizations, respiratory cases.

Green Postmark: Misc. ex: H5N1 Suspected Cases, Respiratory; hospital overloads...
Green Thumbtack: PPRS



Red: H5N1 Human Confirmed
Blue: H5N1 Poultry Confirmed in assoc. with Human Confirmed
Yellow: H5N1 Confirmed Poultry Outbreaks
Purple: H1N1 Confirmed Humans
Green: Misc. ex: H5N1 Suspected Cases, Respiratory; hospital overloads...
Purple Thumbtack: Cholera
Pink Thumbtack: Dengue
Green Thumbtack: PPRS
Light Blue Thumbtack: Hand-Foot-Mouth