The United Nations monitoring agency has declared the South - East Asia states to be vigilant , as it has its second case of acute East respiratory Syndrome ( MERS ) , with 37 more under observation . MERS kills over one - third of the people it infects and no vaccines available . South Korea responded with an outbreak that killed 36 people last year .
The United Nations health agency has warned the South-East Asia states to be vigilant, as Thailand confirms its second case of Middle East Respiratory Syndrome (MERS), with 37 more under observation. MERS kills over one-third of the people it infects and no vaccines exist. South Korea struggled with an outbreak that killed 36 people last year.