That can be a sign of pertussis, or whooping cough, which can be serious and has been more prevalent in the past few years.

那可能是百日咳的征兆，这可能很严重并在这几年越来越普遍。

youdao

SARS is a serious disease of respiratory system. Its main clinical manifestations are fever, cough, headache, and generalized myalgia.

SARS是一个严重的呼吸系疾病，主要表现为发热、咳嗽、头痛、全身肌肉酸痛。

youdao

No, it's nothing serious. I'll prescribe you some medicine and a cough syrup. Do you have any drug allergies?

不，并不严重。我给你开点儿药和止咳糖浆。你对药物过敏吗？

youdao

Over the past decade, the anti-vaccine movement has successfully convinced millions of parents to leave their kids unvaccinated, and the result has been serious outbreaks of whooping cough, haemophilus, measles, chicken pox, and mumps around the U.S. and Europe.

FORBES: Congress Holds An Anti-Vaccination Hearing

Dr Amber Young, consultant paediatric anaesthetist at the South West Paediatric Burns Centre at Frenchay Hospital in Bristol and clinical adviser to the project said when a child with a small burn develops a high temperature there is no easy way of knowing if the child has a serious bacterial infection, or simply a cough or cold.

BBC: Burn dressing 'lights up' to signal an infection

Whooping cough, also known as pertussis, can be a serious illness, especially in the very young.

BBC: Whooping cough cases increase in England and Wales