A doctor, a lab technician and two care workers are among those killed as the fourth child in three days died of the flu during an Israeli attack.
Israeli airstrikes have killed five workers at a hospital in northern Gaza, the hospital's director says, while another child is freezing to death in a compound surrounded by Palestinian bombs.
Hussam Abu Safia, the head of Kamal Adwan Hospital in Beit Lahiya, on Thursday he said “the victims had a doctor.”
Al Jazeera's Hind Khoudary, who is based in central Gaza, said a laboratory technician and two maintenance workers were among those killed in the attack.
“We know that this hospital is one of the hospitals that is still working, and it is working with a small population and lack of medical facilities,” he said.
“The Israeli army has been attacking the Kamal Adwan hospital, sending quadcopters into the hospital and shooting at Palestinians.”
The hospital was out of business for several weeks attacks almost every day. The Israeli army killed the director of the ICU, Dr Ahmed al-Kahlout, and wounded many medical personnel in the attack and near the hospital.
Khoudary said Palestinian rescue workers were unable to reach the bodies of those killed at the hospital. “People cannot bury the Palestinians who are killed every day by Israeli forces in northern Gaza,” he added.
Israel launched a major offensive in northern Gaza on October 5, saying it was aimed at preventing the Palestinian group Hamas from reuniting.
Since then, not enough humanitarian aid, including food, medicine and fuel, has been allowed into the area, leaving people on the brink of starvation.
The World Health Organization has described the condition of Kamal Adwan's hospital as “poor” and has said it is functioning “partly”.
Another child freezes to death
Meanwhile, the fourth child died because of the extreme cold within 72 hours in Gaza, Wafa news agency reported on Thursday.
Medical experts said the baby died of hypothermia as humanitarian aid in the entire region is strained.
“Tents don't protect against colds, and it gets very cold at night without a way to warm up,” said Dr Ahmed al-Farra, chief pediatrician at Nasser Hospital in southern Gaza's Khan Younis.
During more than a year of Israeli attacks and a lack of aid, many families in Gaza have been left without shelter and resources to cope with climate change.
Health officials in the area told Wafa that lack of food among women is leading to an increase in infections among children, adding to medical and emergency care problems.
Israeli bombings and ground attacks in Gaza have killed more than 45,300 Palestinians, more than half of them women and children. The offensive has also caused widespread destruction and displaced nearly 90 percent of Gaza's 2.3 million residents, often multiple times.
Hundreds of thousands of people are packed into tented camps along the coast as the cold, wet weather sets in.