"I did not know she's in town until I heard about it on the radio a few minutes ago", Cynthia Brobbey, a saleswoman at a popular retail shop near the airport told Reuters, three hours after the first lady's arrival in Accra.
The wife of the President of the United States of America, Melania Trump has arrived in Accra for a 5-day African trip.
The president later tweeted: "Proud of our great First Lady - and she loves doing this!"
Apart from the phototherapy machine, Mrs Trump also donated hampers and gifts to mothers and children at the Child Welfare Clinic of the Hospital.
The White House says the first lady's five-day visit to Africa will center on "maternal and newborn care in hospitals" and "education for children".
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First up on the trip for Trump is Ghana.
Melania Trump then watched as health officials weighed babies in sacks hanging from a pulley as part of routine wellness checks.
"She's very friendly, easy-going and interactive", said Rabiu Fauziya, a 28-year-old paediatric nurse who helped show Trump the neonatal room in the hospital.
Mrs Trump announced her visit at a reception for spouses of world leaders, held on the sidelines of the 73rd United Nations General Assembly, in NY. The tray was carried in a leather case bearing the first lady's signature.
In return, Melania Trump received a kente cloth, a Ghanaian fabric distinguished by its multicolored strips of cotton or silk, and an artifact.
The two first ladies met for the first time at the United Nations General Assembly last week.
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Shortly before taking off earlier this week, Melania tweeted her excitement with a special video.
In Ghana, USAID's programs have focused on healthcare by supporting efforts to expand the coverage and quality of healthcare for mothers and newborns, and educating women and young children about the importance of proper nutrition.
The trip is Trump's first major solo outing overseas as first lady.
The campaign is aimed at promoting the well-being of the youth and also advocates against cyberbullying and drug use, in Africa.
The aid goes towards preventing conflict and violent extremism, supporting democracy, and combating poverty and disease.
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