How to spell the pinyin of epidemic situation?

The pinyin of epidemic is: yì qíng, which means the occurrence and development of the epidemic.

The larger epidemics that have occurred in my country include: Severe Acute Respiratory Syndrome (SARS), Influenza A (H1N1), and Coronavirus Disease 2019 (COVID-19).

The recent new coronavirus disease (Corona Virus Disease 2019, COVID-19), referred to as "new coronavirus pneumonia", is named "2019 coronavirus disease" by the World Health Organization, which refers to the 2019 new coronavirus infection resulting in pneumonia. Since December 2019, some hospitals in Wuhan, Hubei Province have successively discovered multiple cases of pneumonia of unknown origin with a history of exposure to the South China Seafood Market, which have now been confirmed to be acute respiratory infectious diseases caused by the 2019 novel coronavirus infection.