The death of a 25-year-old man who developed high fever and headache after
diving to catch clams in a pond in Phu Yen Province in July has been confirmed
to be caused by a brain-eating amoeba. This is the first confirmed case in
Vietnam.
P.V.T, a temporary resident in Ho
Chi Minh City, returned to his native province of Phu Yen in mid-July. He and
some friends later dived to catch clams in a fishpond. On July 29, he developed
high fever and headache and he took some medicines but the condition got worse.
One day later, he was
hospitalized at the Nhan Dan Gia Dinh Hospital in HCMC, where doctors consulted
their counterparts from the Tropical Diseases Hospital and suspected that T had
been inflected with a kind of amoeba.
T was later transferred to the
Tropical Diseases Hospital for further treatment.
Despite intensive treatment, the
patient could not recover since the ameba had moved from his nose to his brain
and caused meningitis, said Dr Nguyen Hoan Phu, deputy head of the hospital’s
infection department.
The patient later fell into a
deep coma and experienced three cardiac arrests and the three respiratory
arrests.
On July 31, the patient’s
relatives asked the hospital for T’s discharge and T died on the way home in
Phu Yen.
On August 21, a molecular
biological test on the victim’s sample confirmed that he had been infected with
a deadly amoeba species with scientific name Naegleria fowleri, which was
discovered in 1965 and is sometimes called the brain-eating amoeba.
The amoeba is typically found in
warm fresh water, such as ponds, lakes, rivers, and hot springs, Phu said.
N. fowleri can invade and attack
the human nervous system. Although this occurs rarely, such an infection nearly
always results in the death of the victim. The fatality rate is estimated at 98
percent.
In the US, 121 people have been
affected by the amoeba since 1937, when the first infection case was found, and
only one of them survived. The dead victims had swam or bathed in ponds or
lakes and then developed fever, headache and vomiting 1-2 weeks later, Dr Phu
said.
He advised everybody should go to
see a doctor if they develop the said symptoms after swimming or bathing in
ponds, lakes or rivers.
The Health Ministry has asked the
hospital to submit a report about the death, since this is the first case in
Vietnam.
Swimming pools are safe
Dr Tran Phu Manh Sieu, said the
amoeba is unlikely to be found in swimming pools that are well decontaminated
like those in HCMC, since it cannot survive in water mixed with bactericide at
a high level.
He also said the death from the
amoeba is the first that has been confirmed in Vietnam so far. Whether any
similar death has previously occurred remains unknown, since this amoeba can
kill patients soon and if a test is not performed, doctors cannot identify the
cause of the death.
Dr Nguyen Hung, director of Phu
Yen Province Preventive Health Center, said. “I think an epidemiological
investigation should be made on a certain number of people before concluding
that this amoeba lives in lakes and ponds.
Such an investigation is
necessary to drive away fear among the public, Hung said.
TUOI TRE
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