According to the staffing guidelines and regulations set by the Ethiopian Federal Ministry of Health (FMoH) for Maternal and Child Health (MCH) hospitals in Ethiopia, the minimum staff pattern includes the following positions:

1. Medical Director/Chief Medical Officer: Responsible for overall management and coordination of medical services in the hospital.
2. Obstetrician/Gynecologist: Provides specialized care for pregnant women, including prenatal care, delivery, and postnatal care.
3. Pediatrician: Provides specialized care for infants and children, including diagnosis and treatment of various pediatric conditions.
4. Anesthetist: Administers anesthesia during surgeries and other medical procedures.
5. General Practitioners/Family Physicians: Provide primary healthcare services, including general medical consultations and treatment.
6. Nurses: Provide nursing care, including monitoring patients, administering medications, and assisting doctors during procedures.
7. Midwives: Provide prenatal care, assist in deliveries, and provide postnatal care for mothers and newborns.
8. Laboratory Technicians: Conduct various laboratory tests and analyze samples.
9. Pharmacists: Dispense medications and provide pharmaceutical advice.
10. Radiographers: Perform diagnostic imaging procedures, such as X-rays and ultrasounds.
11. Health Officers: Assist in the management and coordination of healthcare services.
12. Health Extension Workers: Provide community-based healthcare services, including health education and basic medical care.

The specific number of staff required for each position may vary depending on the size and capacity of the MCH hospital. These guidelines aim to ensure that MCH hospitals have an adequate number of qualified healthcare professionals to provide quality maternal and child healthcare services.