On average, fever lasted for 4.5 days after admission (range 1–20 days). Most of the
cases were admitted to and IgG, and four only had dengue IgG. Of the 1085 DF/DHF cases
based on the complete records, only 458 (42.2%) were notified to
the Epidemiology Unit.hospital 8 days after the onset of symptoms
(mean 7.93, median 8, range 1–24 days). The youngest case
was aged 1 year and the oldest was aged 83 years; the mean age
was 22.1 years. Clinicians in the Northern Province categorized
suspected DF/DHF cases into three categories as follows: (1) DF, (2)
DHF, and (3) DENV infection. In that respect, 601 patients were
diagnosed with DF, 132 with DHF, and 352 patients were
diagnosed with a DENV infection; the latter was considered mild
compared to DF and DHF.
In the adult cohort, headache (60.8%), vomiting (50.6%), myalgia
(30.9%), and a flushed appearance (29.9%) were the main clinical
features. Similar clinical features such as vomiting (49.8%),
headache (35%), myalgia (13.8%), and a flushed appearance
(13.8%) were noted in children. Overall 266 (24.5%) patients had
haemorrhages, of whom 224 were adults. Hepatomegaly was more
common in children (43.7%) than adults (19.9%) (Tables 1 and 2). In
both age categories (children and adults, n = 266), gum bleeding
(37.2%) was the major haemorrhagic manifestation, followed by
melena, petechiae/purpura, haematemesis, and haemoptysis.
A low WBC (<4 109) and platelet count were noted in 294
(27.1%) and 929 (85.6%) patients, respectively. Approximately 7%
of the patients had a platelet count of <20 109/L. A prolonged
capillary refilling time (CRT) was noted in 11.7% of the patients.
Hypotension and tachycardia were noted in 19% and 27.1%,
respectively. Of the 1085 suspected DF/DHF cases, only 24 (2.2%)
were screened for dengue IgM/IgG antibodies. Of these, 13 were
positive for dengue IgM only, five patients had both dengue IgM
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