The state has barred the facility, the Wanaque Centre for Nursing and Rehabilitation, from accepting new patients until the outbreak is contained.
In the past 10 years, cases of severe illness and death from the type of infection found at the facility have been reported in the United States, though it's unclear how many deaths there have been. A inspection team sent to the facility on Sunday found some "minor" hand-washing deficiencies, which could have contributed to the outbreak.
The state investigation is ongoing.
Officials say the strain affecting children at the clinic, number seven, is associated with communal living and "can be more severe". The infections can affect the tissue linings of the respiratory tract, eyes, intestines, urinary tract and nervous system, causing illnesses ranging from a cold to bronchitis to pneumonia to pink eye.
The state's Department of Health said the child's death was associated with an adenovirus outbreak at a facility that cares for children with severe disabilities and medical problems. The department is not releasing exact ages of any patients because of Health Insurance Portability and Accountability Act (HIPAA) and privacy reasons, Kirgan said. It can also be spread through contact with an infected person's stool, including during diaper changing.
An outbreak of adenovirus also hospitalized six people in MI this August, sending two into intensive care.
But the 18 patients, had compromised immune systems.
A voice mail message left for the director of nursing at the Wanaque Center on Tuesday was not immediately returned.
New Jersey Governor Phil Murphy said on Tuesday that 'the Department of Health has recommended vital measures to enhance protections against the further spread of infection and will continue its active on-site surveillance.