Are flaviviruses again active in Mali?

Using a hemagglutinating yellow fever antigen, a serologic investigation was done on 1237 blood samples collected between 1979 and 1983 in five regions of Mali. The results showed that the percentage of positive reactions (greater than 1:10) was higher in the sera of mothers than in their new borns (24.8 versus 12.

Prevalence of antibodies against respiratory viruses in children of Koulikoro (Mali).

The prevalence of antibodies to viruses associated with respiratory illnesses (influenza, corona, R.S., adeno, parainfluenza Mycoplasma pneumoniae) has been investigated in 119 children under 3 years of age (Koulikoro region Mali) and 50 persons 15-19 years of age (Bamako/Mali).

[Naturally acquired tetanus antitoxin in the serum of children and adults in Mali].

Among 48 adults without a history of tetanus immunization, we found with the aid of indirect hemagglutination test 20 individuals with protective tetanus antibody titers, 23 with low levels of antitoxin (under 0,1 I.U./ml) and 5 devoid of tetanus antitoxin.

[Cytomegalovirus antibody titer (indirect hemagglutination) of mothers and their newborn infants from Hamburg and Bamako].

Antibodies to cytomegalovirus (CMV) have been detected by the indirect haemagglutination test in 107 paired sera (newborn and mother) from Hamburg and 39 paired sera from Bamako (Mali). In addition, 53 unpaired sera from neonates and different mothers from Mali were evaluated for our study. In Hamburg 63,5% of both newborns and their mothers possessed CMV antibodies.

Antibody formation after vaccination with adsorbed and non-adsorbed A/New Jersey/8/76 influenza vaccines.

A study was carried out to determine the titres of haemagglutination inhibiting and neuraminidase antibodies after vaccination of 90 subjects, aged 19 to 35 years, with three aluminium oxide adsorbate and three fluid monovalent influenza A/New Jersey/8/76 vaccines with 54, 108 and 216 IU/dose. Blood samples were taken 1, 3 and 6 months after vaccination. The serological findings showed that adsorbate vaccines induced higher antibody titres than did fluid vaccines with double the antigen content.