text: For more than a year, the Ministry of Health has been working to find and negotiate early access to vaccine sources?
classes:  No, vietnam's Ministry of Health has been powerless to find vaccine sources during this period.  Besides, vietnam's Ministry of Health has been powerless to find vaccine sources during this period.  Yes, vietnam's Ministry of Health has been powerless to find vaccine sources during this period.  Meanwhile, vietnam's Ministry of Health has been powerless to find vaccine sources during this period.