The minimum staff pattern for a Maternal and Child Health (MCH) hospital in Ethiopia, as per the staffing guidelines and regulations set by the Ethiopian Drug and Food Administration (EDFA), may include the following positions:

1. Medical Director/Chief Medical Officer: Responsible for overall management and supervision of the hospital.
2. Obstetrician/Gynecologist: Provides specialized care for pregnant women, including prenatal care, delivery, and postnatal care.
3. Pediatrician: Provides medical care for infants, children, and adolescents.
4. General Practitioners/Family Physicians: Provides primary healthcare services to patients of all ages.
5. Nurses: Registered nurses who provide direct patient care, including monitoring vital signs, administering medications, and assisting with procedures.
6. Midwives: Provide care to pregnant women, assist with deliveries, and provide postnatal care.
7. Laboratory Technicians: Conduct various laboratory tests and analyze samples.
8. Pharmacists: Dispense medications and provide pharmaceutical advice.
9. Radiographers: Perform diagnostic imaging procedures, such as X-rays and ultrasounds.
10. Health Information Management Officer: Responsible for managing patient records and health information systems.
11. Administrative Staff: Includes receptionists, clerks, and other administrative personnel who handle appointments, admissions, and general administrative tasks.
12. Support Staff: Includes cleaners, security personnel, and maintenance staff.

Please note that the specific staff pattern may vary depending on the size and capacity of the MCH hospital. The guidelines and regulations provided by the EDFA should be consulted for the most accurate and up-to-date information.