The former MLC Ivan D’Souza on Monday urged the working class to inoculate themselves against COVID-19 so as to prevent the further spread of the pandemic. He was inaugurating a free COVID-19 vaccination camp organised for autorickshaw drivers by Maco Cooperative Society in association with the Bejai Primary Health Centre at the society’s Balmatta petrol bunk. Mr. D’Souza, who is the president of the society, said that if workers were alert, society becomes alert.