The International Workers' Day parade took place at Havana’s Revolution Square, attended by Army General Raúl Castro Ruz, leader of the Cuban Revolution, and Miguel Díaz-Canel Bermúdez, First Secretary of the Central Committee of the Communist Party of Cuba and President of the Republic.
The first clinical studies of the application of Cuba’s first nasal vaccine candidate, named Mambisa, to patients convalescing from Covid-19 and as a booster are ongoing.
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