What is the minimum time between blood donations to ensure health?

Eligible blood donors are those who meet the following age, health and other conditions:
Age: from 18 to 60 years old; Women weighing at least 42kg and men at least 45kg are allowed to donate whole blood; Those who weigh from 42kg to under 45kg are allowed to donate blood with no more than 250ml of whole blood for each donation; people weighing 45kg or more are allowed to donate whole blood but need to make sure to donate no more than 09 ml/kg of body weight and not more than 500 ml/time of blood donation; Persons weighing at least 50kg are allowed to donate blood components by dialysis (can donate one or more blood components in each dialysis but the total volume does not exceed 500 ml/time); Persons with a minimum weight of 60kg are allowed to donate the total volume of blood components not exceeding 650ml/time; No chronic or acute diseases of: neurological, psychiatric, respiratory, circulatory, urinary, gastrointestinal - hepatobiliary, endocrine, blood diseases, systemic diseases, autoimmune diseases, allergies heavy; Not pregnant, no history of donor - organ transplant, no drug/alcohol addiction, no major disability, no use of certain prescribed medications (Etretinate, Acitretin, growth hormone extract) from the pituitary gland, Insulin extracted from bovine), free from blood-borne and/or sexually transmitted diseases; Require blood donors to be awake, in good contact, systolic blood pressure from 100 - 160 mmHg and diastolic from 60 - 100 mmHg, regular heart rate, from 60 to 90 times/minute; No symptoms: thin, rapid weight loss (over 10% weight loss in 6 months), blue skin, pale mucous membranes, dizziness, dizziness, sweating, enlarged lymph nodes in many places, fever, edema, cough , difficulty breathing, diarrhea, bleeding, lesions or abnormalities on the skin.

The minimum interval between blood donations between 2 consecutive donations of whole blood or red blood cells by dialysis is: 12 weeks; The minimum interval required between 2 consecutive plasma or platelet donations by dialysis is: 2 weeks; For neutrophil donors or stem cell donors by peripheral hemodialysis: no more than 3 times in 07 days; Where a blood donor alternates whole blood and different blood components, the minimum interval between donations will be considered according to the type of blood component he or she most recently donated.

Subjects must delay blood donation for at least 12 months from:
The time when their health fully recovers after surgical treatment interventions; Time of complete recovery after diseases such as malaria, syphilis, tuberculosis, tetanus, meningitis; The time to end the course of rabies vaccination in cases of being bitten by an animal or receiving injections, transfusions of blood, blood products and other blood-derived biological products; The time of giving birth or the cases in which the pregnancy must be terminated.

Subjects need to delay blood donation for at least 06 months from the following times:
When tattooing on the skin; Press the earlobe , press the nose, press the navel or other body positions; Exposure to blood or bodily fluids from at-risk individuals or patients with blood-borne diseases; The time of complete recovery after typhoid fever, sepsis, snakebite, arteriovenous thrombosis, osteomyelitis, pancreatitis. Subjects need to delay blood donation for at least 1 month from:
The time when their health recovers after suffering from gastroenteritis, urinary tract infection, skin infection, bronchitis, pneumonia, measles, cough chicken, mumps, dengue fever, rubella, cholera, dysentery, mumps; Time to complete vaccination program against rubella, measles, typhoid, cholera, mumps, chickenpox, BCG. Subjects need to delay blood donation at least 07 days from the time:
Recovering from flu, cold, nasopharyngeal allergy, pharyngitis, migraine; Get all vaccines, except those listed above. Some regulations on blood donation related to specific occupations and activities of the working group are as follows, blood donation can only be made during rest days, or the minimum time back to work from the time of blood donation 12 hours or more:
People working at height or at depth: pilots, crane operators, overhead workers, mountaineers, miners, sailors, divers; Operators of public transport means: drivers of buses, trains, ships; Some other cases such as professional athletes, people who are active or train hard. The remaining subjects other than those mentioned above will delay blood donation depending on the opinion and decision of the doctor examining and selecting blood donors.