Hasan found two deck lascars with fever and he brought them to Dr. Cronin. Dr. Cronin examined both the patients. He found that they had smallpox. Hasan prepared an evacuation room and moved the patients there. On examining all the crew members Dr. Cronin discovered fresh cases of small pox. Dr. Cronin isolated all the patients and gave them treatment. He kept the outbreak of smallpox a secret from other passengers because it might scare them. There were altogether 14 patients. Two of the patients died. But the others survived. Dr. Cronin and Hasan were successful in preventing the killer disease from spreading.