Child vaccination rates in Lebanon have dropped by more than 30 percent, compounding a health crisis marked by drug shortages and an exodus of trained professionals, the United Nations said on Wednesday. “The critical drop in vaccination rates has left children vulnerable to potentially deadly diseases such as measles, diphtheria and pneumonia,” the UN children’s agency UNICEF said in a new report titled “A worsening health crisis for children”. “Routine vaccination of children has dropped by 31 per cent when rates already were worryingly low, creating a large pool of unprotected children vuln…