"These refusals come at a huge cost to individual researchers. Visa applications require scientists to be studious with paperwork, commit often large sums of money and make several trips to embassies that are sometimes outside their home country. My experience left me feeling demoralized, embarrassed and insulted by the implication that I and people like me couldn’t be trusted to attend a conference without outstaying our welcome."

https://www.nature.com/articles/d41586-024-00892-1

‘Exhausted and insulted’: how harsh visa-application policies are hobbling global research

Institutions and individuals from low- and middle-income countries are wasting time, effort and money trying to get visas for research travel, only to be rejected. A new approach is needed.