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Table 1 Included studies

From: Challenges of breastfeeding during COVID-19 and baby friendly protocols adopted at a maternity health center in the northern Emirates of UAE: a comprehensive review

References

Title

Type of study

Outcome

Perl SH, Uzan-Yulzari A, Klainer H, Asiskovich L, Youngster M, Rinott E, Youngster I [28]

SARS-CoV-2-specific antibodies in breast milk after COVID-19 vaccination of breastfeeding women

Prospective study

SARS-CoV-2-specific IgA and IgG antibodies in breast milk for 6 weeks after vaccination. IgA secretion was evident at 2 weeks after vaccination followed by a spike in IgG after 4 weeks (a week after the second vaccine)

Garg I, Shekhar R, Sheikh AB, Pal S. [30]

COVID-19 Vaccine in pregnant and lactating women: a review of existing evidence and practice guidelines

Review

COVID-19 vaccines can be given to breastfeeding individuals who meet the criteria for vaccination based on ACIP- (Advisory Committee on Immunization Practices)

McLaurin-Jiang S, Garner CD, Krutsch K, Hale TW. [32]

Maternal and child symptoms following covid-19 vaccination among breastfeeding mothers

Cross-sectional survey

COVID-19 vaccination caused minimal disruption of lactation or adverse impact on the breastfed child

Charepe N, Gonçalves J, Juliano AM, Lopes DG, Canhão H, Soares H, Serrano EF [10]

COVID-19 mRNA vaccine and antibody response in lactating women: a prospective cohort study

Prospective cohort study

The presence of antibodies in human milk is reported, but immunization through breastfeeding is yet to be established

Bertrand K, Honerkamp-Smith G, Chambers CD [39]

Maternal and child outcomes reported by breastfeeding women following messenger RNA COVID-19 vaccination

Prospective cohort study

All mRNA COVID-19 vaccines are safe for lactating mothers

Pérez-Bermejo M, Peris-Ochando B, Murillo-Llorente MT 2021

Martins I, Louwen F, Ayres-de-Campos D, Mahmood T. [40]

COVID-19: relationship and impact on breastfeeding-a systematic review

European board of obstetrics and gynec (EBOG)position statement on COVID-19 vaccination for pregnant and breastfeeding women

Systematic Review

Direct breastfeeding and maintaining appropriate protective measures should be encouraged

Muyldermans J, De Weerdt L, De Brabandere L, Maertens K, Tommelein E. [25]

The effects of COVID-19 vaccination on lactating women: a systematic review of the literature

Systematic review

There is evidence that the administration of a COVID-19 vaccine is safe and poses no additional risk to the breastfeeding woman or the breastfed baby

Narayanaswamy V, Pentecost BT, Schoen CN, Alfandari D, Schneider SS, Baker R, Arcaro KF [15]

Neutralizing antibodies and cytokines in breast milk after coronavirus disease 2019 (COVID-19) mRNA vaccination

A cohort study on 30 lactating mothers

Elevation of interferon-γ. The immune response to maternal vaccination was reflected in breastfed infants: anti-RBD IgG and anti-RBD IgA were detected in 33% and 30% of infant stool samples (Passive immunity against Covid -19

Pace RM, Williams JE, Järvinen KM, Belfort MB, Pace CDW, Lackey KA, Gogel AC, Nguyen-Contant P, Kanagaiah P, Fitzgerald T, Ferri R, Young B, Rosen-Carole C, Diaz N, Meehan CL, Caffé B, Sangster MY, Topham D, McGuire MA, Seppo A, McGuire MK [16]

Characterization of SARS-CoV-2 RNA, antibodies, and neutralizing capacity in milk produced by women with COVID-19

In Vitro study

62% of the milk samples were able to neutralize SARS-CoV-2 whereas milk samples collected before the COVID-19 pandemic were unable to do so

Lechosa-Muñiz C, Paz-Zulueta M, Mendez-Legaza JM, Irure-Ventura J, Cuesta González R, Calvo Montes J, López-Hoyos M, Llorca J, Cabero-Pérez MJ [37]

Induction of SARS-CoV-2-specific IgG and IgA in serum and milk with different SARS-CoV-2 vaccines in breastfeeding women: a cross-sectional study in northern Spain. I

Clinical trials

Vaccines given to breastfeeding mothers offer their infants IgA and IgG isotype antibodies directed against SARS-CoV-2 protein S in breast milk

Lamers M, van der Mijle A, van Hunsel F, de Vries L, van Puijenbroek E, Ceulemans M [41]

COVID-19 vaccination during breastfeeding and its possible negative effect on milk production and supply: a preliminary observation

Observational study

occurrence of reduced milk supply appears to be low and transient,

Pang Z, Hu R, Tian L, Lou F, Chen Y, Wang S, He S, Zhu S, An X, Song L, Liu F, Tong Y, Fan H [6]

Overview of breastfeeding under COVID-19 pandemic

Overview

Breastfeeding is to be continued with recommendations and guidance for breastfeeding set by international organizations

Rosenberg-Friedman M, Kigel A, Bahar Y, Werbner M, Alter J, Yogev Y, Dror Y, Lubetzky R, Dessau M, Gal-Tanamy M, Many A, Wine Y [53]

BNT162b2 mRNA vaccine-elicited antibody response in blood and milk of breastfeeding women

Prospective study

The response in breast milk includes both IgG and IgA with neutralization capacity

Whited N, Cervantes J [27]

Antibodies against SARS-CoV-2 in human breast milk after vaccination: a systematic review and meta-analysis

Systematic review

of high rates of positivity for antibodies in breast milk following COVID-19 immunizations

Olearo F, Radmanesh LS, Felber N, von Possel R, Emmerich P, Pekarek N, Pfefferle S, Nörz D, Hansen G, Diemert A, Aepfelbacher M, Hecher K, Lütgehetmann M, Arck PC, Tallarek AC [42]

Anti-SARS-CoV-2 antibodies in breast milk during lactation after infection or vaccination: a cohort study

Cohort Study

Breast milk antibodies in all groups showed neutralization capacities against an early pandemic SARS-CoV-2 isolate (HH-1) and Omicron variant, although with lower antibody titer

Mulleners SJ, Juncker HG, van Gils MJ, van Goudoever JB, van Keulen BJ [31]

Human milk antibody response after combining two different COVID-19 vaccines: mix-and-match

Clinical trials

heterologous vaccination with AZD1222 and an mRNA-based vaccine can elicit a significant SARS-CoV-2 specific IgA response in human milk

Perez SE, Luna Centeno LD, Cheng WA, Marentes Ruiz CJ, Lee Y, Congrave-Wilson Z, Powell RL, Stellwagen L, Pannaraj PS [26]

Human milk SARS-CoV-2 antibodies up to 6 months after vaccination

Prospective longitudinal study

The data suggest that human milk SARS-CoV-2-specific antibodies may be available to milk-fed infants for up to 6 months

Abuidhail J, Tamim F, Abdelrahman RY, Al-Shalabi E [59]

Knowledge and practices of breastfeeding mothers towards prevention of the emerging coronavirus (COVID-19)

Cross-sectional study

Participants have basic knowledge about COVID-19 in general, but they have improper preventive breastfeeding practices against the disease

Mosalli R, Paes B [17]

Setting realistic goals for feeding infants when their mothers have suspected or confirmed COVID-19

Review

parents should fully understand the current evidence, availability of personnel to support breastfeeding, protective spaces, caseloads, and resources available to implement existing recommendations

Peroni DG, Fanos V [4]

Lactoferrin is an important factor when breastfeeding and COVID-19 are considered

Review

we believe that early breastfeeding provides vital prevention during viral epidemics, due to the high value of colostrum and breast milk and the specific role of lactoferrin

Vazquez-Vazquez A, Dib S, Rougeaux E, Wells JC, Fewtrell MS [73]

The impact of the COVID-19 lockdown on the experiences and feeding practices of new mothers in the UK: Preliminary data from the COVID-19 new mum study

Data review

Lockdown has impacted maternal experiences, resulting in distress for many women

Low JM, Low YW, Zhong Y, Lee CYC, Chan M, Ng NBH, Amin Z, Ng YPM. [29]

Titers and neutralizing capacity of SARS-CoV-2-specific antibodies in human milk: a systematic review

Systematic review

Human milk of lactating individuals after COVID-19 infection contains anti-SARS-CoV-2-specific IgG, IgM, and/or IgA, even after mild or asymptomatic infection

Davanzo R [60]

Breastfeeding at the time of COVID-19: do not forget expressed mother's milk, please

Review

Breastfeeding at the time of COVID-19: do not forget expressed mother's milk

Walker KF, O'Donoghue K, Grace N, Dorling J, Comeau JL, Li W, Thornton JG [69]

Maternal transmission of SARS-COV-2 to the neonate, and possible routes for such transmission: a systematic review and critical analysis

systematic review and critical analysis

wear a fluid-resistant surgical face mask, if available while feeding or caring for the baby