Free flu shots offering protection against a variety of influenzas expected to surface this winter are being offered to District of Columbia residents considered to be "high risk" cases.

The Department of Human Resources is offering vaccines to persons 65 years old and older, as well as to persons of all ages with chronic health problems, such as heart disease, diabetes or severe asthma.

Youth under 13 are required to have a physician's note confirming their illness because DHR has received only a limited supply of vaccine being used for children under 13. Those children will only be serviced at Center No. 17, located at 702 15th St. NE.

Dr Martin E. Levy, chief of the city's communicable disease control office, said the city has only enough of the youth vaccine to service 500 children. Levy said the Department of Health, Education and Welfare has been unable to negotiate with the manufacturer for a larger supply.

The funds and vaccine for the program are being supplied by HEW, Levy said. He estimated that there are 90,000 District of Columbia residents in the high-risk category.

The immunizations offer protection against the Russian flu, Texas flu, and Hong Kong flu.

DHR centers providing the vaccines are open 9 a.m. until 4 p.m. weekdays.

Beginning Saturday, vaccinations will available 9:30 a.m. until 4 p.m. weekends.

For general information concerning the immunization program the public may call: 673-6700.

DHR clinics providing influenza immunizations 9 a.m. to 4 p.m. weekdays:

DHR clinics providing inflence immunization, The Northwest Health Center at 1325 [WORD ILLEGIBLE] St. N.W. 576-7185; [WORD ILLEGIBLE] Southwest Health Center, 258 Delaware Ave. SW. 723-3615; Parkside, [WORD ILLEGIBLE] Kenilworth Ter. NE. 727-8370; 635 -1 St. NE. [WORD ILLEGIBLE] ; Anacostia, 1328 St. SE., 767-7880; Congress Heights, [WORD ILLEGIBLE] and Zenia streets SE, 767-[WORD ILLEGIBLE]

The following D.C. Fire Department locations will provide weekend vaccinations from 9:30 a.m. until 4 p.m.

On Nov. 18, the station at 14th and V streets SE, Nov. 19, the station at [WORD ILLEGIBLE] Martin Luther King Ave. SE; Nov. 25. Connecticut Avenue and Porter Street NW; Nov. 26, 1300 Park Rd. NW; Dec. 2, 13th Street and Rhode island Avenue NE; Dec. 3, Monroe St. NE.

Persons 25 years old and younger are required to take two injections four weeks or more apart for the best results.