How many children did Louis Pasteur have, and how many died of typhoid fever?

Context: Pasteur married Marie Pasteur in 1849. She was the daughter of the rector of the University of Strasbourg, and was Pasteur's scientific assistant. They had five children together, three of whom died as children. Their eldest daughter, Jeanne, was born in 1850. She died from typhoid fever, aged 9, whilst at the boarding school Arbois in 1859. In 1865, 2-year-old Camille died of a liver tumour. Shortly after they decided to bring Cécile home from boarding school, but she too died of typhoid fever on 23 May 1866 at the age of 12. Only Jean Baptiste and Marie Louise survived to adulthood. Jean Baptiste would be a soldier in the Franco-Prussian War between France and Prussia.

Answer: Louis Pasteur had 5 children, 2 of which died from Typhoid fever