I can't speak of any of the places you listed. But I know that a series of epidemics devestated much of Central African in the late 19th century. It wasn't European diseases, but rather the spread of sleeping sickness and various ticks and insects from areas where they were common to where they weren't within Africa. About half the population in Rwanda and Burundi died, and in other places as well. The brutality of colonialism in the region, especially under King Leopold in the Congo Free State, played an important role as well.
In Greenland the first contact between indigenous groups and Europeans probably occurred around the 13th Century with the proto-Inuit Thule people and the Norse settlers from Iceland. The Norse were actually settled in Greenland before the Thule migrated to the island. Contact could have occurred earlier with the Dorset people, but this seems a little unlikely as the Dorset settlements were in the far northwestern tip of Greenland and the Norse settled around the southern coast. Some artifact evidence points to limited trade between the Norse and the Thule, or the skraelings as they were called by the Norse. Nobody really knows for sure if diseases were passed between the groups but it seems unlikely that the Thule were heavily affected as they outlasted the Norse in Greenland and continued to expand across the island after contact was made. Archaeologists and historians believe that--in a reversal of most European and aboriginal relations--the Thule people may have contributed to the collapse of the Norse settlements by competing with them for fisheries and for access to walrus and seal hunting areas. A few other factors may have been responsible for the eventual downfall of the Greenland Norse but that’s not relevant to the question.
The people of Greenland wouldn’t come into contact with Europeans again until 1721, when a missionary group from Denmark and Norway came looking for the Norse settlers. Finding nothing but Norse ruins and Inuit people, the missionaries decided to settle on the island to convert the Inuit. A smallpox outbreak did occur on the island in 1733, but it was ironically brought by a native Inuit Greenlander who had been taken to Europe. He had contracted the disease in Europe and spread it when he returned to Greenland and his people. The converted Greenlanders who lived around the Moravian missions were heavily affected by the disease, but the Inuit who remained in the North or along the coasts were not as badly contaminated as they mostly remained isolated from the Europeans.
Due to the fact that the people of Greenland lived in some fairly harsh environments (approximately three-quarters of Greenland is covered in a permanent ice sheet) most European settlers didn’t really push aggressively into the Inuit’s native territory so diseases were not spread to the same degree as they were in the rest of North America. To this day the majority of Greenland’s residents are Inuit, so hopefully that shows that the Europeans didn’t really affect the Inuit in a super catastrophic way.
Hi, you may be interested in a couple of other responses
Why did European diseases affect Hawai'i? by /u/b1uepenguin
Why didn't aboriginal new zealander, australians and sub-saharan africans all die from disease, like the incans, mayans and aztecs did? - thread includes links to a couple more