TAIPEI—Much-needed COVID-19 vaccines should be coming to Taiwan soon, the GAVI Vaccine Alliance said on Monday, as the chip-producing island’s limited supplies run short during a spike in cases that has left the government scrambling for supplies. A surge of coronavirus infections in Taiwan, one of the world’s COVID-19 mitigation success stories, has led to its stock of 300,000 doses rapidly running out, with only about 1 percent of its 23 million people vaccinated. Taiwan has been a model of how to control the pandemic but over the past week has reported more than 700 domestic cases, out of a total of 2,017 infections recorded in all, triggering panic buying at supermarkets as the government tightened curbs. The GAVI Vaccine Alliance, which with the World Health Organization is jointly running the COVAX scheme to provide doses to countries that may have difficulties obtaining them, said more AstraZeneca vaccines were coming …