Regulation 21 Amendment of regulation 30 of the principal Regulations
For regulation 30(2) of the principal Regulations (surveillance) substitute—
“(2)Where a person has been placed under surveillance for plague, cholera, smallpox or viral haemorrhagic fever under regulation 20 by reason of that person having come from an area infected with such a disease, the period shall be reckoned from the date of his or her leaving the area.”.