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result sql = Differences in biofilm development and antibiotic susceptibility among clinical Ureaplasma urealyticum and Ureaplasma parvum isolates.
Differences in biofilm development and antibiotic susceptibility among clinical Ureaplasma urealyticum and Ureaplasma parvum isolates.
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char = i;code = 105
char = r;code = 114
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = o;code = 111
char = w;code = 119
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = l;code = 108
char = o;code = 111
char = u;code = 117
char = r;code = 114
char = ;code = 32
char = s;code = 115
char = h;code = 104
char = i;code = 105
char = f;code = 102
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = d;code = 100
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = i;code = 105
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = ;code = 32
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = l;code = 108
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = y;code = 121
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = t;code = 116
char = w;code = 119
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = M;code = 77
char = I;code = 73
char = C;code = 67
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = m;code = 109
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = b;code = 98
char = i;code = 105
char = o;code = 111
char = f;code = 102
char = i;code = 105
char = l;code = 108
char = m;code = 109
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = h;code = 104
char = i;code = 105
char = b;code = 98
char = i;code = 105
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = R;code = 82
char = E;code = 69
char = S;code = 83
char = U;code = 85
char = L;code = 76
char = T;code = 84
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = I;code = 73
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = U;code = 85
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = s;code = 115
char = m;code = 109
char = a;code = 97
char = ;code = 32
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = l;code = 108
char = y;code = 121
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = v;code = 118
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = 7;code = 55
char = ;code = 32
char = (;code = 40
char = f;code = 102
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = U;code = 85
char = .;code = 46
char = ;code = 32
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = l;code = 108
char = y;code = 121
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = v;code = 118
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = 1;code = 49
char = 3;code = 51
char = ;code = 32
char = (;code = 40
char = f;code = 102
char = o;code = 111
char = u;code = 117
char = r;code = 114
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = U;code = 85
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = s;code = 115
char = m;code = 109
char = a;code = 97
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = v;code = 118
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = v;code = 118
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = 3;code = 51
char = ;code = 32
char = (;code = 40
char = t;code = 116
char = w;code = 119
char = o;code = 111
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = );code = 41
char = .;code = 46
char = ;code = 32
char = B;code = 66
char = i;code = 105
char = o;code = 111
char = f;code = 102
char = i;code = 105
char = l;code = 108
char = m;code = 109
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = b;code = 98
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = v;code = 118
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = 9;code = 57
char = ;code = 32
char = o;code = 111
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = 1;code = 49
char = 1;code = 49
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = (;code = 40
char = 8;code = 56
char = 2;code = 50
char = %;code = 37
char = );code = 41
char = ;;code = 59
char = ;code = 32
char = t;code = 116
char = w;code = 119
char = o;code = 111
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = U;code = 85
char = .;code = 46
char = ;code = 32
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = l;code = 108
char = y;code = 121
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = v;code = 118
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = 1;code = 49
char = 3;code = 51
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = n;code = 110
char = o;code = 111
char = n;code = 110
char = -;code = 45
char = b;code = 98
char = i;code = 105
char = o;code = 111
char = f;code = 102
char = i;code = 105
char = l;code = 108
char = m;code = 109
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = G;code = 71
char = l;code = 108
char = o;code = 111
char = b;code = 98
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = n;code = 110
char = k;code = 107
char = t;code = 116
char = o;code = 111
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = e;code = 101
char = r;code = 114
char = y;code = 121
char = t;code = 116
char = h;code = 104
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = y;code = 121
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = (;code = 40
char = 0;code = 48
char = %;code = 37
char = ;code = 32
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = 4;code = 52
char = 4;code = 52
char = %;code = 37
char = ,;code = 44
char = ;code = 32
char = P;code = 80
char = ;code = 32
char = =;code = 61
char = ;code = 32
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 2;code = 50
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = y;code = 121
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = (;code = 40
char = 2;code = 50
char = 2;code = 50
char = %;code = 37
char = ;code = 32
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = 7;code = 55
char = 7;code = 55
char = %;code = 37
char = ,;code = 44
char = ;code = 32
char = P;code = 80
char = ;code = 32
char = =;code = 61
char = ;code = 32
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 2;code = 50
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = c;code = 99
char = i;code = 105
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = f;code = 102
char = l;code = 108
char = o;code = 111
char = x;code = 120
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = (;code = 40
char = 6;code = 54
char = 6;code = 54
char = %;code = 37
char = ;code = 32
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = 1;code = 49
char = 0;code = 48
char = 0;code = 48
char = %;code = 37
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = v;code = 118
char = o;code = 111
char = f;code = 102
char = l;code = 108
char = o;code = 111
char = x;code = 120
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = (;code = 40
char = 0;code = 48
char = %;code = 37
char = ;code = 32
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = 3;code = 51
char = 3;code = 51
char = %;code = 37
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = e;code = 101
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = 0;code = 48
char = %;code = 37
char = ;code = 32
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = 3;code = 51
char = 3;code = 51
char = %;code = 37
char = );code = 41
char = .;code = 46
char = ;code = 32
char = A;code = 65
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = i;code = 105
char = o;code = 111
char = f;code = 102
char = i;code = 105
char = l;code = 108
char = m;code = 109
char = -;code = 45
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = u;code = 117
char = l;code = 108
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = s;code = 115
char = c;code = 99
char = e;code = 101
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = c;code = 99
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = y;code = 121
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = b;code = 98
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = n;code = 110
char = k;code = 107
char = t;code = 116
char = o;code = 111
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = i;code = 105
char = o;code = 111
char = f;code = 102
char = i;code = 105
char = l;code = 108
char = m;code = 109
char = ;code = 32
char = t;code = 116
char = y;code = 121
char = p;code = 112
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = o;code = 111
char = w;code = 119
char = t;code = 116
char = h;code = 104
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
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result sql = OBJECTIVES : The aim of this work was to study the ability of clinical isolates of Ureaplasma spp. to form biofilms in vitro and to compare the antibiotic susceptibility of sessile cells and their planktonic counterparts.

METHODS : A total of nine Ureaplasma spp. isolates recovered from unrelated male patients diagnosed with urethritis or chronic prostatitis and two isolates isolated from the urine of two healthy volunteers were included. Ureaplasma species identification was performed by 16S rDNA gene amplification and sequencing. Conventional antibiotic susceptibility tests were carried out by the broth microdilution method. Biofilm susceptibility assays were performed following the method proposed by Moskowitz using 10C urea broth medium and confirming bacterial growth by colour shift of the medium. The chi(2) test was applied to analyse the statistical differences between the MIC and the minimal biofilm inhibitory concentration.

RESULTS : Isolates were identified as Ureaplasma urealyticum serovar 7 (five isolates), U. urealyticum serovar 13 (four isolates) and Ureaplasma parvum serovar 3 (two isolates). Biofilm formation was observed in 9 out of the 11 strains studied (82%); two isolates of U. urealyticum serovar 13 were non-biofilm formers. Global resistance percentages of planktonic cells compared with sessile cells were different for erythromycin (0% versus 44%, P = 0.02), telithromycin (22% versus 77%, P = 0.02), ciprofloxacin (66% versus 100%), levofloxacin (0% versus 33%) and tetracycline (0% versus 33%). All nine biofilm-forming strains were fully susceptible to clarithromycin in both planktonic and biofilm types of growth.

CONCLUSIONS : These results indicate that biofilm formation can protect mycoplasma cells from antibiotics and host defences, favouring their persistence in chronically infected or colonized patients while increasing resistance to antimicrobial agents. Therefore, the capacity to form biofilms by Ureaplasma spp. isolates should be considered when antibiotic treatments are required.

Publication: J. Antimicrob. Chemother. 2008 Nov ;62(5)::1027-30. :doi: 10.1093/jac/dkn337.
Publication Date: 2008 Nov
Study Author(s): García-Castillo, María;Morosini, María-Isabel;Gálvez, María;Baquero, Fernando;del Campo, Rosa;Meseguer, María-Antonia;
Institution: Servicio de Microbiología, Hospital Universitario Ramón y Cajal y CIBER en Epidemiología y Salud Pública, Ctra Colmenar Km 9.1, Madrid 28034, Spain.
Shortcut link to this study:
OBJECTIVES : The aim of this work was to study the ability of clinical isolates of Ureaplasma spp. to form biofilms in vitro and to compare the antibiotic susceptibility of sessile cells and their planktonic counterparts.

METHODS : A total of nine Ureaplasma spp. isolates recovered from unrelated male patients diagnosed with urethritis or chronic prostatitis and two isolates isolated from the urine of two healthy volunteers were included. Ureaplasma species identification was performed by 16S rDNA gene amplification and sequencing. Conventional antibiotic susceptibility tests were carried out by the broth microdilution method. Biofilm susceptibility assays were performed following the method proposed by Moskowitz using 10C urea broth medium and confirming bacterial growth by colour shift of the medium. The chi(2) test was applied to analyse the statistical differences between the MIC and the minimal biofilm inhibitory concentration.

RESULTS : Isolates were identified as Ureaplasma urealyticum serovar 7 (five isolates), U. urealyticum serovar 13 (four isolates) and Ureaplasma parvum serovar 3 (two isolates). Biofilm formation was observed in 9 out of the 11 strains studied (82%); two isolates of U. urealyticum serovar 13 were non-biofilm formers. Global resistance percentages of planktonic cells compared with sessile cells were different for erythromycin (0% versus 44%, P = 0.02), telithromycin (22% versus 77%, P = 0.02), ciprofloxacin (66% versus 100%), levofloxacin (0% versus 33%) and tetracycline (0% versus 33%). All nine biofilm-forming strains were fully susceptible to clarithromycin in both planktonic and biofilm types of growth.

CONCLUSIONS : These results indicate that biofilm formation can protect mycoplasma cells from antibiotics and host defences, favouring their persistence in chronically infected or colonized patients while increasing resistance to antimicrobial agents. Therefore, the capacity to form biofilms by Ureaplasma spp. isolates should be considered when antibiotic treatments are required.
PMID: 18753188

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