BERLIN—German Health Minister Jens Spahn backed a second term for World Health Organization chief Tedros Adhanom Ghebreyesus and called on other countries to support the former Ethiopian health minister ahead of a deadline this week. “We invite partner countries to join us nominating DG (Director General) Tedros,” Spahn told Reuters. The support is significant as Germany is a major financial backer of the WHO. Last week, sources told Reuters that Tedros looks set to run unopposed for a second term at the helm of the WHO as it tries to guide the world through its biggest health crisis in a century, even though he lacks the support of Ethiopia due to friction over the Tigray conflict. Tedros, who has been the public face of the global fight against the COVID-19 pandemic, has trodden a fine line while managing to anger both China and the United States at different times. The …