US citizens told get polio vaccination before travelling

The United States Centre for Disease Control (CDC) and Prevention has warned its citizens to be fully vaccinated against polio before travelling to Papua New Guinea.
The US Embassy said CDC released a Level 2 travel warning for PNG regarding the recent outbreak of polio.
The embassy said adults who had already been fully vaccinated as a child should receive a single lifetime booster dose of polio vaccine before travel.
Further, World Health Organisation currently recommends all residents and long-term visitors in PNG receive a dose of oral polio vaccine (OPV) or inactivated poliovirus vaccine (IPV) booster between four weeks and 12 months prior to international travel,” the embassy said.
“As proof of vaccination, travellers should carry an official certificate of vaccination or the World Health Organisation International Certificate of Vaccination (yellow booklet).
According to the CDC in its advise to US citizens, adults needed only one polio booster in their life.
“If you were not completely vaccinated as a child or do not know your vaccination status, talk to your doctor about getting vaccinated,” CDC said.
“If you will be in Papua New Guinea for more than four weeks, the Government of Papua New Guinea may require you to show proof of polio vaccination when you are exiting the country.
“To meet this requirement, you should receive a polio vaccine between four weeks and 12 months before the date you are leaving Papua New Guinea.”
“Talk to your doctor about whether this requirement applies to you.”