Hemorrhagic Fever with Renal Syndrome (HFRS) is a natural focus disease, and it prevails in many countries on Eurasia.
肾综合征出血热是一种自然疫源性疾病，在欧亚大陆许多国家流行。
Objestive: To in investigate conditions of Lyme disease and focus of natural infection in border area.
目的：调查边境地区莱姆病和自然疫源地的状况。
Objestive: To in investigate conditions of Lyme disease and focus of natural infection in border area.
目的：调查边境地区莱姆病和自然疫源地的状况。
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