In view of the early monsoon and high
transmission period there is higher probability of out breaks of fevers and
higher incidence of Dengue fevers in the months of July, August, September.
In this connection all the Medical Officers in the district are
instructed to observe the month of JULY-16 as
“ Dengue Awareness Month “.
The following activities shall be under taken
by all the Medical officers regularly till September.
·
The
Medical officers shall maintain utmost vigilance for any fever out breaks in
their area.
·
Aedes Larval surveillance shall be taken up in all
the villages with priority in the villages where there were confimed Dengue cases in the previous year.
·
House
to house aedes larval survey shall be conducted by MPHA and HS in all domestic
and peridomestic water storage containers.
·
House
to house Aedes larval survey shall be conducted by ASHA in all domestic and peridomestic water
storage containers.
·
During the surveillence
all the following sites which are breeding sources for aedes larva (Cement tanks , water coolers, overhead tank,sumps, old unused tyres,
Stored water in buckets, Roof tops) shall be inspected
·
During the
surveillance, if aedes larva found all the containers shall emptied and dried
and the house hold members are to be informed not to use the containers for
another 24 hours
·
The above activities shall
be conducted in all villages after the conduction of immunisation sessions on
Wedness day and Saturday
·
Awareness activities like
group meetings VHSNC committee meetings
shall be conducted in all the villages where ther were positive dengue cases
last year.
The
following standard case definitions shall be complied with for a suspect,
probable and confirmed dengue case
SUSPECTED
An acute
febrile illness of 2-7 days duration with two or more of the following
manifestations:
·
Headache,
·
Retroorbital pain,
·
Myalgia,
·
Arthralgia,
·
Rash,
·
Haemorrhagic manifestations
·
Leucopenia
or
·
Non ELISA based NS1 antigen/IgM positive.
PROBABLE
A positive
test by RDT will be considered as probable due to poor sensitivity and
specificity of
currently
available RDTs)
CONFIRMED
A case
compatible with the clinical description of dengue fever with at least one of
the following:
·
Demonstration of dengue virus NS1 antigen in
serum sample by ELISA.
·
Demonstration of IgM antibodies by IgM antibody
capture ELISA in single serum
sample.
·
IgG seroconversion in paired sera after 2
weeks with fourfold increase of IgG titre.
·
Detection of viral nucleic acid by polymerase
Chainreaction (PCR)
·
Isolation of the dengue virus (virus culture
+ve) from serum, plasm
When
ever a Medical officer suspects
a fever case as Dengue
·
Apply the standard case definition of suspected dengue case.
·
If any of the symptoms
suggestive of a suspect case the patient should be refered to “NTR VIDYA PARISKHALU “ for Rapid
diagnsostic test.
·
If the RDT is positive take
sera sample and sent to Dept. of Microbiology
Government Medical College, for Elisa test.
·
The sample should be cleary
labelled with following details Name,
age, Sex, Address, with mobile No. and send to the microbiology dept, Medeical
College,Ananthapuramu through the special meseenger
·
Information about suspected
case should immediatly informed to concerned Dy.DM&HOS, Malaria subunit
officer, Asst.Malaria Officer and District Malaria Officer.
·
House to house survey and
container surveillance shall be taken up in the respective village.
·
If a case is confirmed as a dengue the following
activities shall be taken up
( Pyrethrum spray, 4 weeks Anti
Larval Oprations, Fogging operations)
·
Appropriate referral shall
be taken up based on the severity of the
case.
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