He added that he was working with the UK Government to ensure there were “adequate supplies” of medicines but admitted that there were “localised shortages”.
Earlier this month an alert was issued to pharmacists to warn there could be shortages of the drugs, due to the surge in demand.
Alternative antibiotics can be used in cases where ideal treatments are not available and are effective, Mr Yousaf said.
Public Health Scotland said that in the week ending December 25 there were 869 laboratory reports of Strep A, a reduction from 1,079 the previous week.
This compares with between 300 and 480 reports per week during peaks observed in the period since 2016.
While most cases can be treated at home, series infections, which are known as invasive, can be life threatening.
Infection levels ‘similar to previous years’
The PHS report said: “Although increases in GAS [Group A Streptococcus] were reported in recent weeks in Scotland, [invasive] GAS infections levels for 2022 have been generally stable and similar to previous years.”
In the week ending December 25 there were 15 invasive cases reported across all age groups, compared with 13 in the previous week.
This compares with between 12 and 18 cases per week during peaks observed in previous years.
Data from the beginning of October to December 25 2022 show that PHS has received reports of 20 invasive GAS cases in children under 10.
Infections caused by Strep A include the skin infection impetigo, scarlet fever and strep throat.
Scarlet fever in particular has seen a recent surge in cases, with case numbers three times higher than the same period in previous years.