Babies with coughing symptoms need to first clarify the cause of the cough, and then decide whether they can take live attenuated vaccines according to the cause, and if it is the onset of colds and bronchitis, they need to hold off on the vaccination. Common live attenuated vaccines include live attenuated measles vaccine, live attenuated encephalitis B vaccine, and live attenuated rubella vaccine. Whether a baby with a cough can get a live attenuated vaccine depends mainly on the cause of the cough. Babies with a bit of cough may be caused by inhaling pollen and other foreign bodies, choking on food and drink, climate change, etc. Usually, there are no obvious symptoms of respiratory infection, and they can be vaccinated with live attenuated vaccine. A simple cough will not affect the effectiveness of the vaccine, and vaccination with live attenuated vaccine will not aggravate the symptoms of coughing. However, if the cough is caused by the incubation period, morbidity and recovery period of acute diseases, such as viral colds, pneumonia, bronchitis, etc., and accompanied by fever symptoms of children, it is not suitable for live attenuated vaccine, so as not to produce an immune response or affect the preventive effect of the vaccine, usually need to be in the condition of the full recovery or get effective control before considering vaccination. Whether a baby with a cough can receive live attenuated vaccine, it is recommended to consult a doctor in advance, and the doctor will make appropriate judgment according to the cause and severity of the cough. Parents should not blindly make their own judgment to avoid serious effects.