As per the International Labor Office recommendations there are many medical conditions that may limit or disallow someone to work at sea. The following is a list with some of the most common conditions. Please be aware that these medical conditions still need to be reviewed by your doctor to see exact requirements and treatable conditions.
SOME COMMON MEDICAL CONDITIONS THAT MAY LIMIT A SEAFARER'S CERTIFICATE TO WORK AT SEA:
-BMI of over 35
-Stroke
-Seizures
-Many active infections including Tuberculosis
-Cancers
-Diabetes
-Alcohol or drug dependence
-Some psychiatric disorders
-Epilepsy
-Some eye disorders
-Many cardiac problems for example pacemakers, heart attacks
-Many poorly controlled medical conditions for example uncontrolled high blood pressure
-Emphysema
-Forms of asthma
-Back pain
I had MMR vaccinations as a child . Why would I need to show proof.
MMR is the vaccination that includes Measles , Mumps and Rubella. Your employer will want proofs of all 3. There are vaccinations that may only include one or two and these would not be adequate. The proof of vaccinations must also include your name, person giving the vaccination signature, date of the vaccination and the medication lot number.