Just as Taiwan was restocking its herds and refining its cleanup efforts from a major outbreak of Foot-And-Mouth Disease (FMD), there are reports of a new outbreak.

Taiwanese newspapers are reporting government officials as saying the latest FMD epidemic has been contained to three hog farms affecting 211 animals. But, they warn, sporadic outbreaks are likely to hit the island's' hog population in the future.

In order to keep track of vaccination for FMD, which only lasts six months, agricultural officials are requiring that vaccinated animals be identified with ear tags.

Speculation is that vaccination schedules may have lapsed in some herds, triggering another outbreak.

Officials point out most pigs still carry antibodies from previous vaccination so a massive outbreak is unlikely