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Polio Eradication |
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Publications Poliomyelitis
Eradication in the Eastern Mediterranean Region Highlights of poliomyelitis eradication activities in countries of the Region Endemic or recently polio-free countries Egypt
During 2002, seven cases
were reported. One case was from Assiut, Upper Egypt. Two cases were from
Giza, near Cairo. Four cases were from governorates of Lower Egypt (one from
each of Alexandria and Menofia and two from Sharkia). All cases were of type
1 and had onset in September or later, after intensification of surveillance
activities, which started in July 2002. Egypt is reporting high
levels of routine immunization, has conducted many rounds of supplementary
immunization and is maintaining the surveillance for cases of acute flaccid
paralysis (AFP) up to the certification standard. However, as shown by the
continuing occurrence of clinical cases and the widespread detection of type
1 wild polioviruses in the environment, final achievement of eradication of
all wild polioviruses has been delayed beyond expectation. The reported routine OPV3
coverage in 2002 was 97%. Immunization campaigns with OPV have been
conducted in Egypt since 1976. Annual national immunization days (NIDs) have
been conducted since 1989. The quality of these campaigns has improved
particularly recently by shifting to house-to-house vaccine delivery in
urban areas as was being done in rural areas. This shift to urban
house-to-house vaccination started in Upper Egypt and high-risk areas and
slums in Lower Egypt several years ago. In Fall 2002 the three rounds of
NIDs were implemented house-to-house in all areas of Egypt including main
cities such as Cairo and Alexandria. In addition these NIDs have involved
for the first time volunteers from outside the Ministry of Health, from
different national sectors such as universities and nongovernmental
organizations, particularly the Red Crescent Society, the Scouts Movement
and the Rotary Clubs. There is evidence
that the SNIDs carried out in Spring 2002 and the NIDs carried out in Fall
2002 were of good quality with marked increase in the number of vaccination
teams and intensified supervision and monitoring. AFP
surveillance was initiated in Egypt in the early 1990s. Surveillance
quality, as measured by non-polio AFP rates and the completeness of
collection of adequate stool specimens, has continued to improve over the
past 5 years to reach the required level of performance at the national
level. There were however several practices performed until recently which
have worked against full transparency of surveillance activities. One of
these was the punitive action taken in response to the detection of polio
cases. These actions had established a pervasive “culture of fear” among
health workers discouraging the rapid reporting of suspect AFP cases and
leading to the possible suppression of wild poliovirus reporting. These
practices were gradually overcome almost completely starting two years ago.
Testing of all stool samples is carried out at the laboratories of VACSERA,
Cairo, which is accredited by the WHO as a regional reference lab. Due
to the delay in the interruption of wild virus transmission beyond
expectation a Technical Advisory Group (TAG) was established early in 2002
to review the situation of polio in Egypt and provide recommendations. In
response to the recommendations of the TAG a comprehensive plan of action
for polio eradication was developed for the second half of 2002. The AFP
surveillance system has improved markedly with the development of standard
operating procedures, and recruitment of national consultants by WHO to
support activities in different governorates. With all these improvements
the AFP rate for the second half of 2002 was above 3.5 compared to 1.2 in
2001.
A recent surveillance review has indicated that since mid 2002
significant improvement in the performance of the surveillance system has
occurred, including reduction, although perhaps not complete elimination, of
the “culture of fear”.
However, the review concluded that the AFP system is not yet
complete, and it is likely that some cases of AFP with wild poliovirus
continue to be missed in some governorates, primarily because of continued
existence of important “silent areas” and inadequate involvement of
other non-MOH health facilities in the surveillance system. In
summary it is believed that the programme in Egypt is progressing well
towards achieving the eradication goal. However, sustaining these high
quality activities will be crucial for achieving interruption of virus
transmission in this challenging situation.
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