The isolated country's news agency KCNA is notorious for making hyperbolic claims about North Korea's achievements -- from scientific breakthroughs to the sporting prowess of its leaders -- and has previously trumpeted the efficacy of the drug.

Developed by North Korea's Pugang Pharmaceutic Company -- and promoted under the tag line "Everyone has the right to be healthy" -- the vaccine is made of extracts from ginseng with the injection of rare earth elements, KCNA said.

"The Kumdang-2 injection, a strong immune activator, which is produced in DPRK (North Korea), is very effective in curing diseases caused by malignant viruses such as SARS, Ebola and MERS," said the report.

An official checks the body heat of South Korean Unification Minister Hong Yong-Pyo as he visits the South's CIQ (Customs, Immigration, Quarantine) gate connecting North Korea's Kaesong Industrial Complex at the inter-Korean transit office in Paju
The impoverished communist state, known to have a weak health infrastructure, claims to have been testing this cure-all drug since 1989.

South Korea is currently battling with an outbreak of MERS( MIDDLE EAST RESPIRATORY SYNDROME), which has killed 24 people while 166 cases have been confirmed -- the largest outbreak of the disease outside Saudi Arabia.

North Korea has taken drastic measures in the past to guard against viral diseases, and it has recently intensified screening and vowed "watertight" measures at airports and border crossings to ward off the MERS virus.

Last year it imposed a four-month ban on foreign tourists, purportedly due to concern over the spread of the Ebola virus.