A baby treated for HIV within
hours of birth is free of the virus nearly a year later, in the second
case that has raised hopes about early treatment, doctors said.
Eventually, the tests came back positive for HIV.
But by six days of age, the virus was undetectable.
"The remarkable thing about this particular baby is that the virus disappeared so quickly," said Bryson.
"The only way we would know if the baby is in remission is to stop therapy," explained Bryson.
The approach
mirrored that taken for a Mississippi baby, who has been off treatment
for 21 months and still has no detectable virus in her system.
The
latest research on the two young girls was presented at the annual
Conference on Retroviruses and Opportunistic Infections (CROI) in
Boston.
The newest case
involves a Los Angeles baby who was born to a mother infected with HIV
and who had not been taking her medications, making her at high risk for
transmission, said Yvonne Bryson, chief of pediatric infectious
diseases at the David Geffen School of Medicine at the University of
California, Los Angeles.
Audra
Deveikis, a pediatric infectious disease specialist at Miller
Children's Hospital Long Beach, where the baby was born, tested the
infant and gave her high, treatment-level doses of antiretroviral drugs
before even knowing if she was HIV-positive, Bryson told AFP by phone
from the conference.
"The way
it works is you test and you treat before you know the results because
it takes several days to get the results," explained Bryson, a
consultant on the case.
Treatment started at four hours of age, even earlier than the Mississippi child.Eventually, the tests came back positive for HIV.
But by six days of age, the virus was undetectable.
"The remarkable thing about this particular baby is that the virus disappeared so quickly," said Bryson.
- Not a 'cure' yet -
The baby is still being
treated with antiretroviral drugs, and researchers are cautious not to
utter the world "cure" or even "remission" just yet.
Now aged 11 months, the child is doing well and continues to see doctors while under the care of a foster family.
She has "no detectable viral load, nothing since six days of age. That is the earliest ever," said Bryson.
Once she turns two, doctors may decide to stop suppressive therapy to see if she is in remission, or if the virus would rebound.
Also
at the conference, Deborah Persaud of Johns Hopkins University
presented the latest on the Mississippi baby, who was given ART at 31
hours of age.
Now, the
three-year-old is considered in remission from HIV, after drug treatment
was stopped 21 months ago and no viral rebound has been observed.
Bryson said the Los Angeles team is optimistic that their baby will do just as well.
"The
fact that it was a very fast reduction in the virus to undetectable
levels makes us very hopeful that this baby might follow in the
footsteps of the Mississippi which is still being followed," said
Bryson.
"We are learning a lot now and it is exciting for the future."
There
is no known cure for AIDS, which has infected some 70 million people
around the world and killed 35 million, according to the World Health
Organization.
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