2) Procedures to apply for a Seamanâs Record Book (SRB), sometimes. referred to as a Discharge Book or Continuous Discharge Certificate (CDC) that records the onboard record of employment. 1.3 This Bulletin should be read in conjunction the BMA Information Bulletins.
That raises to total count to 67 cases. In the United States, the current recommended measles regimen is to give children a first dose of vaccine at 12 to 15 months of age, and a second dose at 4 to 6 years of age. But that wasn't the case in the 1960s, 1970s and during much of the 1980s.
Two measles shots in childhood usually give lifelong protection. Tetanus shots should be repeated every 10 years or so. Pertussis, or whooping cough, shots are moving in that direction as well, since a new vaccine with fewer side effects that was introduced the 1990s gives shorter-lived protection.