Global allies want more clarity on how the United States plans to share its resources, know-how — and especially, its growing vaccine stockpile. Advocates say there’s no time to waste, pointing to virus surges crippling India and other countries that collectively reported more than 5 million cases in the past week. Even some administration officials concede that Biden’s recent decision to support the developing world’s petition for a vaccine-patent waiver, which drove a wedge with drug companies that sped hundreds of millions of doses to inoculate America and is unlikely to boost supply this year, shows the risk of dribbling out tactics, rather than setting out a comprehensive strategy to help vaccinate the world. “Where is the plan?” asked one Department of Health and Human Services official involved in the coronavirus response who spoke on the condition of anonymity to discuss private deliberations. “The waiver is not a plan.” Diplomatic experts say the worsening outbreak offers Biden his greatest immediate opportunity to help the United States regain the global stature lost under his predecessor.