Isolement en France d’une souche atténuée du virus du Myxome infectieux (Souche Loiret 55)

Studies on Resistance to Bacterial Infections in Animals Infected With Rickettsiae

“…Studies have been carried out on the interaction of viruses, both related (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) and unrelated (10,(15)(16)(17)(18)(19)(20), between rickettsiae (21), on interference by viruses against bacterial infections (22), and by mycoses against rickettsial infections (23). Reviews of the studies on interference between animal viruses have been published by Heule (24) and Lennette (25).…”

“…In general, that agent which is to exert the interfering action must be administered first (11, 13,15,18,22) and the effective interval between administrations varies from 1 hour (13) to 15 days (18) or even 1 year (14). Occasionally, however, the effect may be observed when the two agents are administered simultaneously (3,6,16,18,21) or the interfering agent is injected last (6).…”