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Volume 27, Number 10—October 2021
Dispatch

Breakthrough Infections of SARS-CoV-2 Gamma Variant in Fully Vaccinated Gold Miners, French Guiana, 2021

Nicolas Vignier1Comments to Author , Vincent Bérot1, Nathalie Bonnave, Sandrine Peugny, Mathilde Ballet, Estelle Jacoud, Céline Michaud, Mélanie Gaillet, Félix Djossou, Denis Blanchet, Anne Lavergne, Magalie Demar, Mathieu Nacher, Dominique Rousset, and Loïc Epelboin
Author affiliations: Institut Pierre Louis d’Épidémiologie et de Santé Publique Inserm UMR1136, Paris, France (N. Vignier); Université Sorbonne Paris Nord, Bobigny, France (N. Vignier); Centre Hospitalier de Cayenne, Cayenne, French Guiana (N. Vignier, V. Bérot, N. Bonnave, S. Peugny, E. Jacoud, C. Michaud, M. Gaillet, F. Djossou, D. Blanchet, M. Demar, M. Nacher, L. Epelboin); Centre d’Investigation Clinique Antilles Guyane Inserm 1424, Cayenne (N. Vignier, M. Nacher, L. Epelboin); Centre Hospitalier Ouest Guyanais, Saint Laurent du Maroni, French Guiana (V. Bérot); Agence Régionale de la Santé de Guyane, Cayenne (M. Ballet); Institut Pasteur de la Guyane, Cayenne (A. Lavergne, D. Rousset)

Main Article

Table

Characteristics of gold miners by active SARS-CoV-2 infection status, Cacao, French Guiana, May–June 2021*

Characteristic Total, no. (%)
 Acute SARS-CoV-2 infection
No Yes Total % p value
All participants
 44
 20
 24
 54.6
Mean age
 44
 51.9
 54.5
0.88
Immune status
Fully vaccinated, 2 doses 25 (56.8) 10 15 60.0 0.20
Vaccinated, 1 dose 9 (20.5) 3 6 66.7
History of COVID-19, vaccinated 1 dose 3 (6.8) 3 0 0.00
History of COVID-19, not vaccinated 3 (6.8) 3 0 0.00
Neither vaccinated nor history
 4 (9.1)
 1
 3
 75.0
History of previous COVID-19
Y 6 (8.9) 6 0 0.00 0.004
N
 38 (86.4)
 14
 24
 63.2
Sex
M 42 (95.4) 18 24 57.1 0,11
F
 2 (4.5)
 2
 0
 0.0
Age, y
<55 24 (54.5) 11 12 52.2 0.74
>55
20 (45.4)
 9
 12
 57.1
Country of birth
Brazil 34 (77.3) 16 18 52.9
Surinam 6 (13.6) 2 4 66.7
Haiti 2 (4.5) 1 1
Guyana 1 (2.3) 0 1
France
 1 (2.3)
 1
 0
Occupation
Laborer 20 (45.4) 8 12 60.0 0.73
Operator 17 (38.6) 8 9 52.9
Other
 7 (15.9)
 4
 3
 42.9
Eat alone
Y 7 (15.9) 5 2 28.6 0.13
N
 37 (84.1)
 15
 22
 59.5
Live alone
Y 28 (63.6) 15 13 46.4 0.13
N
 16 (36.4)
 5
 11
 68.8
Contact outside the mine in the previous 2 weeks
Y 26 (60.5) 10 16 61.5 0.35
N
 17 (39.5)
 9
 8
 47.1
Underlying conditions
Hypertension 11 (25.0) 5 6 54.6 1.00
Diabetes 4 (9.1) 2 2 50.0 0.85
Obesity 4 (9.1) 2 2 50,0 0.85
Cardiac insufficiency 3 (8.3)
 1 2 66.7 0.62

*We defined acute SARS-CoV-2 infection in participants as having a positive SARS-CoV-2 antigenic or PCR test in June 2021, symptomatic or not. Of the 24 with acute infection, 21 were symptomatic and 3 asymptomatic infections. p value indicates degree of significance. COVID-19, coronavirus disease; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.

Main Article

1These first authors contributed equally to this article.

Page created: July 15, 2021
Page updated: September 19, 2021
Page reviewed: September 19, 2021
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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