The second epidemic of meningitis, which occurred in the USSR twenty years later, in 1969-1973, at first glance was a new enigma for doctors.
After all, at this time, there were no major movements of the human masses on the territory of the country.
Why did the dangerous disease spread again across the country?
The cause of the unusual outbreak could be determined much later, in 1997, when scientists seriously became interested in the genome structure of the meningococcal varieties that caused meningitis epidemics in different countries of the world.
Article was written by S.Zigunenko, from «Densaulyk» journal.