The COVID-19 pandemic has significantly impacted the global tourism industry through widespread travel restrictions and a decline in demand. International tourist arrivals are estimated to decrease by 20-30% in 2020, resulting in $30-50 billion in lost revenue. Tourism-reliant sectors like hotels, restaurants, casinos, cruises, and retail are struggling with less business. Countries like China, India, Singapore and Japan saw large declines in foreign visitors of over 50% in early 2020. Many interconnected industries are affected by the downturn in tourism caused by the pandemic.