Travelers going to Cuba will be able to enter the country without showing proof of COVID-19 vaccinations or a negative PCR test, a sudden lifting of restrictions the government announced Wednesday that aims to boost tourism to the island. The new rules come when the Caribbean island desperately needs cash. Cuba’s economy has hit record low levels of production of food and other goods. The pandemic and U.S. sanctions have also affected tourism and other significant sources of income, such as money sent to Cubans from abroad. Cubans struggle to buy food as shortages continue, and soaring inflati…