After recovering from a positive COVID-19 case, can one still transmit pneumonia?

　　"Recovered from Yang" likely refers to recovery from a confirmed infection of the novel coronavirus, and the pneumonia mentioned here should also refer to infection with the novel coronavirus. Generally, after recovering from a novel coronavirus infection, individuals may be reinfected and develop another bout of novel coronavirus infection. The specific analysis is as follows:

　　After recovery from a novel coronavirus infection, reinfection and subsequent illness can still occur. Respiratory droplets expelled when infected individuals breathe, speak, or cough contain the novel coronavirus; inhalation of these droplets by others may lead to transmission. Additionally, contact with saliva from infected individuals or contaminated objects may also result in infection. Although the human body produces antibodies following a novel coronavirus infection, these antibodies are not lifelong, making reinfection possible.

　　If patients experience any symptoms or discomfort, it is recommended that they seek timely medical attention at a hospital to avoid delays in diagnosis and treatment.