The regional health administration in Jerusalem opened an epidemiological investigation and is in contact with the child and his family for specific instructions. The patient seems to have been infected with a strain that has undergone a change and could cause disease in those who are not vaccinated.
Until Sunday, no cases of polio had been recorded in Israel since 1989. The Health Ministry called on those who are not yet vaccinated to get vaccinated.
Indications of the virus have been found in sewage samples in the area, although this has occurred in the past without any infections being reported.
The case in Jerusalem comes as an outbreak of the virus was reported in Malawi. The strain found in the outbreak there was linked to one circulating in Pakistan, where it is still endemic. Polio is also endemic in Afghanistan.