To understand this in easy words, when the epidemic spreads in the community so much that it is not known who has been infected due to what. It is called community transition.
Community infection is the case when it becomes impossible to detect which other patient came in contact with the infected person.
Kerala Chief Minister Pinarayi Vijayan was the first in the country to accept the fact that the coastal areas of Thiruvananthapuram are witnessing a state of community transition.
After this, the Indian Medical Association also confirmed that more than 30 thousand cases are reported every day as a result of community infection.