TY - GEN AU - Pensaert,M TI - Background paper. The appearance of the porcine respiratory coronavirus has created new problems and perspectives SN - 0065-2598 PY - 1991///1001 KW - Animals KW - Gastroenteritis, Transmissible, of Swine KW - microbiology KW - Swine KW - Transmissible gastroenteritis virus KW - genetics N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1007/978-1-4684-5823-7_57 ER -