Another 36 children have fallen sick in the mysterious hepatitis outbreak, health chiefs revealed Wednesday — after six deaths were linked to the illness.
It brings the tally of children affected by the liver inflammation to 216 across 37 states, with Mississippi and Utah the latest to be added to the growing list.
No new deaths or liver transplants were reported over the last seven days, the Centers for Disease Control and Prevention (CDC) revealed in their weekly update with the totals remaining at 14 and six respectively.
The agency has not revealed where the fatalities occurred due to ‘confidentiality issues’, but at least one was registered in Wisconsin health chiefs in the state say.
Globally, the U.S. has recorded the most fatalities and suspected cases out of any nation — although this may be because of stronger surveillance here.
Indonesia has reported five deaths in the outbreak, while both Palestine and Israel have registered one each.
Scientists say it will still be weeks before the cause of the cases is revealed, although the CDC continues to consider an adenovirus infection — which can trigger the common cold — as the most likely cause.
The outbreak may also be the result of weakened immunity due to lockdowns which harmed people’s immunity, experts warn.
The CDC is now publishing weekly outbreaks on the numbers of suspected cases, liver transplants and deaths reported.
Many of the cases are ‘historic’, having occurred over the seven months since October 2021, but are only just coming to light now as physicians research samples collected from sick children in-post.
The CDC said last week there was no sign that cases were surging in recent months.
A total of 37 states have now reported cases in the hepatitis outbreak. These are: Arkansas, Alabama, Arizona, California, Colorado, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Nebraska, Nevada, New Jersey, North Carolina, North Dakota, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Dakota, Tennessee, Texas, and Virginia, Washington and Wisconsin.
The territory of Puerto Rico has also recorded at least one case of mysterious hepatitis.
Experts warn lockdowns mean the U.S. may now be heading into a period where it is difficult to know what to expect from infectious diseases.
Dr Marion Koopmans, head of the department of viroscience at the Erasmus Medical Center in Rotterdam, the Netherlands, gave the warning to STAT News and said it was because of less recent immunity.
She said blood tests on children showed they had been on something of an ‘infection honeymoon’ with few antibodies present to normal diseases.
She added: ‘You really see that children in the second year of the pandemic have far less antibodies to a set of common respiratory viruses.
‘They just got less exposed.’
The CDC said last week that an adenovirus infection — which can cause the common cold — was their leading hypothesis for the cause of the illness, although they were also still investigating whether Covid infections played a role.
They have all but ruled out theories suggesting a mutation in the virus may be causing the illness, or that it could be down to exposure to pet dogs. There is no evidence that the Covid vaccine is triggering hepatitis.
The usual causes — hepatitis viruses A, B, C, D and E — have all been ruled out.
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