Funding for this research was provided by:
National Natural Science Foundation of China (81772228, 81501773)
National Institute of Allergy and Infectious Diseases (R01AI110964)
CAMS Innovation Fund for Medical Sciences (2016-I2M-1-014)
Non-profit Central Institute Fund of Chinese Academy of Medical Sciences (2017PT31013)
Received: 29 January 2018
Accepted: 5 September 2018
First Online: 3 October 2018
Ethics approval and consent to participate
: Animals were treated according to the guidelines of Regulations for the Administration of Laboratory Animals (Decree No. 2 of the State Science and Technology Commission of the People’s Republic of China, 1988). The sampling procedure was approved by the Ethics Committee of the Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College (approval number: IPB EC20100415).
: Not applicable.
: The authors declare that they have no competing interests.
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