Although paralytic poliomyelitis is rare in travellers, the findings emphasize the need for routine vaccination against all three polioviruses for all travellers, immigrants, and foreign workers.
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Supports polio vaccination emphasis for travellers and foreign workers; Level 4 data leaves open confirmatory studies before policy change.
World Health Organisation and public health authority records show that 175 cases of paralytic poliomyelitis were imported to industrialised countries between 1975 and 1984. Detailed case reports were therefore analysed to identify characteristic features associated with acquisition of the infection. Of the 175 cases, 96 (55%) were diagnosed in foreign workers or their families, 47 (27%) in nationals travelling on holiday or business, 11 (6%) in immigrants, and 21 (12%) either in contacts who had not travelled or in unclassified groups. Poliomyelitis principally affected children under 5, but travellers aged 41-65 had the highest case fatality rate. The main serotype isolated was poliovirus type 1. The findings suggest that though fewer than one in every 100,000 travellers may be infected by poliomyelitis, all travellers and all immigrants, refugees, and foreign workers should be given full protection against all three polioviruses by routine vaccination.
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Kubli et al. (1987) studied this question.
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