Those letters cannot anagram into a country name, nor can they be changed by one letter to form another word.
The initials SLO refer to the Olympic country code for the country of Slovenia. The first three letters are used to identify a country with a unique 3 letter code. In some cases the code may not be the first three letters but a subset of letters in the country's name.
Rearranging these letters gives you the name of a country. The country is England.
The country with the most letters in its name is the United Kingdom.
No country has all of those letters in a single name.
You have the name of the country China.
There is no country name that can be spelled with the letters 'jyqlramejiwv'.
Barbados and Botswana have 8 letters in their name. Colombia and Malaysia have 8 letters in their name.
Out of those letters, I'd try America.
AngolaBelizeBhutanBrazilBruneiCanadaCyprusFranceGreeceGuineaGuyanaIsraelJordanKosovoKuwaitLatviaMalawiMexicoMonacoNorwayPanamaPolandRussiaRwandaSerbiaSwedenTurkeyTuvaluUgandaZambia
Another name for malaria that starts with an A and has 4 letters is ague.
The city with the letters "uagceswanohs" in its name is Washington.