Disease

Whooping Cough in California.

The whooping cough has come back to California in full force, with the state confirming 9,935 cases by the end of last month, according to the U.S. Centers for Disease Control and Prevention. The outbreak has been deemed as the state's worst in 70 years.

With nearly 1,000 more cases reported than the state's last major whooping cough outbreak in 2010, the highly contagious bacterial disease is considered to be cyclical because cases peak every three to five years.

The disease, also known as pertussis, is known to especially attack infants by causing uncontrollable, violent coughing. Even though it can be cured by a vaccine called TDaP, children are not required to take the vaccine until they are 2 months old.