Arizona saw its first pediatric death related to influenza during the week ending Jan. 1, according to the state Department of Health Services website. The state also saw a spike in the number of lab-confirmed influenza cases, with the respiratory illness now being classified as "widespread" in the state.
There were 355 newly identified influenza cases in the state, bringing the seasonal total to 1,102. Maricopa and Pima counties have both reported 397 cases since the influenza season began in late September. The number only represents a small percentage of those who may be sickened with influenza since most people do not seek medical treatment, according to the state health department.
The pediatric death was in Cochise County.
The state also saw a jump in the number of RSV (respiratory syncytial virus) cases statewide, with Maricopa County reporting 46 new cases.
RSV is the most common viral infection that involves the lungs. In most children and adults, RSV appears as a very bad cold, with a runny nose and cough, and sometimes - but not always - a fever.