4 sentences

1. 食物中毒没有传染性！

   shí​wù​zhòng​dú méi​yǒu chuán​rǎn​xìng!

   Food poisoning is not contagious!

   Source: CCMatrix

2. 我可能还有传染性。

   wǒ kě​néng hái​yǒu chuán​rǎn​xìng.

   I might still be contagious.

   Source: CCMatrix

3. 你必须让你的信心有传染性。

   nǐ bì​xū ràng nǐ de xìn​xīn yǒu chuán​rǎn​xìng.

   You must make your confidence contagious.

   Source: CCMatrix

4. 她没有传染性。

   tā méi​yǒu chuán​rǎn​xìng.

   She's not contagious.

   Source: OpenSubtitles