覆盖噬菌体科（Corticoviridae），Cortico-源自拉丁文，有厚皮之意。主要的宿主为细菌。

覆盖噬菌体属（Corticovirus）代表种：

• 假交替单胞菌属PM2噬菌体（Pseudoalteromonas phage PM2）
• 交替单胞菌属PM2（噬菌体Alteromonas phage PM2）

Corticovirus is a genus of viruses, in the family Corticoviridae. Bacteria serve as natural hosts. There is currently only one species in this genus: the type species Pseudoalteromonas phage PM2. The name is derived from Latin cortex, corticis (meaning 'crust' or 'bark'). However, prophages closely related to PM2 are abundant in the genomes of aquatic bacteria, suggesting that the ecological importance of corticoviruses might be underestimated. The whole family (Corticoviridae) has been little-studied.