The Chinese original disease microorganism and Indic cholera disease made a great loss to British army during the Opium War, it like an unseen hand which impacted the whole war unconsciously.

• 中国本土病原微生物和印度霍乱菌使英军在战争中遭到重创，如同一只看不见的手，不自觉地影响了战争的整个进程。