Translations:Basic Field Epi: Course Resource Book/205/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 26 Agustus 2014, pukul 20.26.