adj.传染性的，感染的(尤指通过呼吸)，患有传染病，有传染力

Her humor is highly infectious.
她的幽默很有感染力。
What an infectious laugh he has!
他的笑声多么具有感染力啊！
Her writing style is concise and infectious.
她的文笔凝练，很有感染力。
The infectious disease spread rapidly through the community, causing panic among the residents.
传染病在这个社区迅速传播，居民们感到恐慌。
After coming into contact with the infected patient, she隔离了自己 to avoid spreading the virus further.
接触了感染者后，她自我隔离以防止病毒进一步传播。
The doctor diagnosed her with a bacterial infection and prescribed antibiotics accordingly.
医生诊断她患有细菌感染，并给出了相应的抗生素治疗。
The school had to close due to an outbreak of measles, making it an infectious environment for now.
学校因麻疹疫情爆发而关闭，现在成了一个传染性很强的地方。
The researchers are closely monitoring the new strain of influenza, as it appears highly infectious.
研究人员正在密切监控这种新型流感病毒，因为它似乎具有高度传染性。
Travelers returning from疫区 are required to undergo a quarantine period to ensure they don't bring any infectious diseases back home.
从疫区返回的旅行者需要接受隔离期，以确保他们不会把任何传染病带回国内。
Hand hygiene is crucial in preventing the spread of infectious diseases, especially in public places.
手部卫生对于防止传染病传播至关重要，尤其是在公共场所。
The vaccine has been proven effective against the infectious meningitis, providing immunity to those who receive it.
疫苗已被证明对传染性脑膜炎有效，接种者会得到免疫保护。
The government launched a massive campaign to educate people about the symptoms and prevention of the infectious disease.
政府发起了一场大规模的运动，教育人们了解疾病的症状和预防措施。
Infectious laughter can be just as contagious as the common cold, spreading joy and positivity among friends.
感染性的笑声就像普通感冒一样具有传染性，能在朋友间传播快乐和正能量。