The basic features of infectious disease are A: There are infectivity, pathogen, epidemic, immunity. B: There are infectivity, patients, immunity, epidemic. C: There are source of infection, route of transmission, susceptibility, immunity. D: There are infectivity, epidemic, endemic, relapse. E: There are pathogen, reinfection, epidemic, immunity.

(7分21秒-7分55秒）According to the budgets mentioned by the World Bank, if we have a worldwide flu epidemic, global wealth will go down by _____________.These investments offer significant benefits beyond just being ready for the epidemic.

The local business was not much________by the sudden outbreak of the epidemic.

常态化疫情防控 A: normal guardiancy against epidemic B: regular epidemic prevention and control C: daily<br/>prevention from epidemic

“Over 500 people died during last year's flu epidemic”句中，epidemic的同义词是什么？

What is the positive side of the epidemic?

epidemic prevention and control 四字

egular epidemic prevention and control

According to a market research company, the demand for 5G smartphones in China is not affected seriously by the epidemic.

The diabetes epidemic continues to go at an _________ rate.