A single BCG vaccine administered at birth has little effect on the sensitivity and specificity of the TST when tested more than 6 months later. Rarely, these have been deadly. Only one other person had inflammation at a BCG vaccination site: a 2.3-year-old HIV + female with pneumonia and a negative blood culture and malaria smear who survived.

For example, in 1987 there were only 2 adverse reactions to BCG vaccine that were reported in all of Canada [1]. Adverse reactions to BCG vaccine appear to be grossly underreported. Each year, families in the United States adopt >20,000 children from abroad …

Sometimes … Reactivation of pre-existing scars, as a manifestation of cutaneous sarcoidosis, is uncommon and the clinical significance of this odd symptom often remains unrecognised. In others, the pain may come on years later. In the appropriate setting a skin biopsy may serve to establish the diagnosis of sarcoidosis and avoid more invasive attempts at obtaining tissue. Sometimes, a scar can make the skin feel very tight.
Sometimes, infections have happened after the use of BCG (intravesical). This medicine is given into the bladder.

The BCG may stay in your urinary tract for some time after the drug is given.

During the same period, 1456 vaccines were administered, with a prevalence of 0.046% adverse reactions; of the patients with these adverse reactions, 45 had local reactions, 18 had lymphadenopathy, 3 had combined local reactio… Although most participants had more than one BCG scar this was because of the high proportion of older individuals with more than one scar.

We were unable to ascertain the strain, the dose and the method of administration of BCG vaccine in these women, although the most … The Danish strain of BCG vaccine, compared to BCG Russia, has been shown to elicit stronger responses in infants one year later and to cause more scarring , , , , , and the intradermal route of administration is associated with the formation of distinctive scars , . The BCG in BCG (intravesical) is a type of bacteria. … The inflammation and induration are thought to be mediated via cross-reactivity between mycobacterial and human homologue heat shock proteins [14].

Ten of 48 children <6 months old had a BCG vaccine scar, five had inflammation at the vaccine site, and 33 had no sign of vaccination (Table (Table3). Pain that comes on years later In some cases, pain from scar tissue is noticeable right away.

3). Talk with the doctor. Erythema and induration at the site of a diphtheria, tetanus, and pertussis vaccination performed 5 months earlier has been reported in 1 child with KD and inflammation of a BCG vaccination scar site [7]. Old scars are considered to be at least 2 years old, and they can itch for a number of reasons. Surprisingly, from 1983 through 1987, 67 such reactions were recorded in British Columbia alone [2].