Translations:Basic Field Epi: Course Resource Book/755/en
In some diseases, infected animals may never develop clinical signs of disease. In other diseases almost all infected animals may develop signs of disease.
In some diseases, infected animals may never develop clinical signs of disease. In other diseases almost all infected animals may develop signs of disease.
Halaman ini terakhir diubah pada 30 Maret 2015, pukul 07.54.