@article{fdi:010084610,
  title = {{P}revalences of {SARS}-{C}o{V}-2 {RNA} and anti-{SARS}-{C}o{V}-2 among at-risk populations in {C}hiang {M}ai and {L}amphun provinces, {T}hailand, during {N}ovember 2020-{J}anuary 2021},
  author = {{T}akalay, {S}. and {N}go-{G}iang-{H}uong, {N}icole and {K}ongnim, {W}. and {M}ongkolwat, {P}. and {P}hoseng, {P}. and {W}angsaeng, {N}. and {H}ongjaisee, {S}. and {B}utr-{I}ndr, {B}. and {T}ragoolpua, {K}. and {J}ourdain, {G}onzague and {P}ornprasert, {S}. and {K}hamduang, {W}.},
  editor = {},
  language = {{ENG}},
  abstract = {{N}on-healthcare workers with a high potential for exposure to severe acute respiratory syndrome coronavirus type 2 ({SARS}-{C}o{V}-2) may contribute to the virus spreading. {D}ata among asymptomatic and high exposure risk populations is still scarce, in particular {C}hiang {M}ai and {L}amphun provinces, {T}hailand. {W}e conducted a cross-sectional observational study aiming to assess the prevalence of {SARS}-{C}o{V}-2 {RNA} positivity, anti-{SARS}-{C}o{V}-2 {I}g{M}/{I}g{G}, and potential associated factors among asymptomatic/mild symptomatic individuals with a high exposure risk in {C}hiang {M}ai and {L}amphun provinces, during the second wave of outbreak in {T}hailand ({N}ovember 2020-{J}anuary 2021). {S}ocio-demographic data was collected through an on-line questionnaire prior to collection of nasopharyngeal/throat swab samples and blood samples tested for {SARS}-{C}o{V}-2 {RNA} ({D}a{A}n {G}ene, {C}hina) and anti-{SARS}-{C}o{V}-2 {I}g{M}/{I}g{G} antibodies (commercial lateral flow immunoassays), respectively. {U}nivariable and multivariable logistic regression analysis were used to analyze associated factors. {N}one of 1,651 participants were found positive for {SARS}-{C}o{V}-2 {RNA} (0%, 95% confidence intervals, {CI}: 0-0.2). {F}ourteen were positive for anti-{SARS}-{C}o{V}-2 {I}g{M}/{I}g{G} antibodies (0.9%, 95% {CI}: 0.5-1.4), including 7 positives for {I}g{M} and 7 positives for {I}g{G} (0.4%, 95% {CI}: 0.2-0.9). {B}eing over 50 years old was independently associated with virus exposure ({OR}: 5.8, 95% {CI}: 1.0-32.1%, p = 0.045). {D}espite high exposure risk, no current infection was found, and a very high proportion was still susceptible to {SARS}-{C}o{V}-2 infection and would clearly benefit from vaccination. {C}ontinuing active surveillance, rolling out of vaccination and monitoring response to vaccine will help better control the {COVID}-19 spread.},
  keywords = {{THAILANDE} ; {CHIANG} {MAI} {PROVINCE} ; {LAMPHUN} {PROVINCE}},
  booktitle = {},
  journal = {{PL}o{S} {O}ne},
  volume = {17},
  numero = {2},
  pages = {e0263127 [12 ]},
  ISSN = {1932-6203},
  year = {2022},
  DOI = {10.1371/journal.pone.0263127},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084610},
}