copied from Reddit:
1. When a 7.3 ML earthquake known as Nine-Two-One occurred in Taiwan, on September 21st 1999, China interfered with Russian's rescue team and claimed they are flying over China's airspace without permission.
2. During the same disaster, other members of the Red Cross were ready to supply Taiwan with monetary and emergency supplies. But China decided to scold these members and stated they need its permission to help saving lives.
3. In 1998, Taiwan had an enterovirus outbreak, and 3000 kids were infected with 80 of them unfortunately passed away. Taiwan requested help from the WHO but WHO refused based on the reasoning that China has the right to decide who in Taiwan gets to live. In the end the US sent in experts in the CDC to help control the outbreak.
4. The same incidence occurred during the outbreak of SARS in 2003; China refused to let medical and epidemiology experts from WHO to come to Taiwan. The WHO only came when a major outbreak occurred in Taipei City Hospital Heping Branch. In total, 346 people were infected, and 73 people had died. In the same year, Taiwan was barred outside of the world health assembly in Geneva. A journalist asked the Chinese diplomat whether he have not heard of the need of twenty million people in Taiwan. The diplomat, named Sha Zukang, replied "We have already been through this [denied your request], have you not heard of the decision made in the assembly? No one cares about you!"