The mother of a 6-month-old boy came to a pediatrician. She is concerned that her child has not received any vaccinations. There are no health complaints. Objectively, the following is observed: body temperature-371° C, respiratory rate 20 /min., blood pressure -100/70 mm Hg, the child's height and weight are within the range between the 50th and 75th percentile. What tactics must the doctor choose in the immunization of this child according to the regulatory documents issued by the Ministry of Health?