Breastfeeding in COVID-19: A Pragmatic Approach

Keywords

Breastfeeding - counseling - COVID-19 - mother-to-child transmission - severe acute respiratory syndrome-coronavirus-2

The novel coronavirus disease 2019 (COVID-19) pandemic is rapidly expanding. Global reports of infection have surpassed 13 million cases as of July 17, 2020[1] and pregnant women are unlikely to be spared from infection. With uncertainty of risk in perinatal and postnatal mother-to-child transmission of severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2), a few guidelines on perinatal and newborn care have recommended avoidance of skin-to-skin contact, mother–infant separation, and limited breastfeeding or human milk feeding.[2] [3] [4] Other health authorities advocate temporary mother–infant separation and feeds of expressed mother's milk until mother becomes less infectious to her newborn.[5] These measures contradict established recommendations of breastfeeding as the ideal source of infant nutrition[6] and may negatively affect establishment of breastfeeding in the critical early days.[7]

A recent Cochrane review analyzed 14 key questions on care of COVID-19 pregnant mothers and babies based on national clinical practice guidelines of 19 countries. Consensus on care practices was not reached for skin-to-skin contact between mother and baby, separation of well babies from mother after birth and breastfeeding in COVID-19.[8]

The World Health Organization's (WHO) recently updated guidelines recommend that mothers with suspected or confirmed COVID-19 infection should be encouraged to initiate and continue breastfeeding because benefits of breastfeeding substantially outweigh the potential risks of transmission.[9]

Therefore, we still face uncertainties in the optimal management of newborn care and breastfeeding. We propose various options ([Table 1]) that could be considered for infant feeding, and recommend option A as the optimal mode for safe and mother-and-baby friendly breastfeeding.[9] [10] [11] In individual cases, based on maternal conditions, and shared decision making between health care providers (HCP) and parents, other options may be considered with its risks and benefits understood.

Table 1 Options for infant feeding and measures for a mother with COVID-19

	Option A	Option B	Option C
Main points	● Direct breastfeeding ● Infant cared for by mother (rooming-in) or HCP/caregiver	● Expressed human milk ● Infant cared for by HCP/caregiver	● No breastfeeding and mother's own milk is not provided
Risks to breastfeeding	● Nil	● Limited mother–infant contact ● Difficulty in establishing latching ● Strain on healthcare resources	● Limited mother–infant contact ● Difficulty in establishing lactation
Examples of situations	● Mother is asymptomatic but swab positive ● Infant positive for SARS-CoV-2 ● Established breastfeeding (infection in the first month postpartum)	● Mother is symptomatic with need for respiratory support	● Mother is critically ill ● Parents, informed decision is not to breastfeed ● Safe milk substitute available (human donor milk or infant formula)
Specific measures: Infant managed as person under investigation (PUI) for up to 14 days from maternal last positive swab, with surveillance, and separated from vulnerable nonimmune persons
Disposition of mother and infant	• Scenario 1: mother–infant rooming in and cares for infant, or • Scenario 2: safe distancing of 2 m between mother and infant, and infant cared by HCP/caregiver. Consider use of physical barriers (e.g., curtain/isolette)	● Scenario 1: Safe distancing of 2 m between mother and infant, and infant cared by HCP/caregiver. Consider use of physical barriers (e.g., curtain/isolette) or ● Scenario 2: Isolation of mother and infant until mother is no longer infectious	● Isolation of mother and infant until mother is no longer infectious
Infant feeding	Scenario 1: breastfeeding with IPC practices Scenario 2: mother to have contact with infant only during breastfeeding and breastfeed with IPC practices	Mother expresses human milk with IPC practices ● Wears facemask and performs hand and breast hygiene ● Proper pump cleaning ● Dedicated breast pump	● Support continuity of human milk production by expressing ● Resume breastfeeding or human milk feeding at appropriate timing ● Alternative sources: donor human milk or infant formula
Handling of human milk	As routine practice	Disinfect outer surface of milk containers	Store or discard (as per joint HCP and parents' decision)

Abbreviations: COVID-19, novel coronavirus disease 2019; HCP, health care providers; IPC, Infection Prevention and Control; SARS-CoV-2, severe acute respiratory syndrome-coronavirus-2.

We believe policymakers and HCP should be provided with an up-to-date review of the range of care recommendations from professional and national bodies (with their pros and cons) to devise pragmatic guidelines locally. Our proposed approach is flexible and supported by an educational program for HCP and counseling process for parents. We also propose several research questions to be explored. We hope this review will serve as a concise reference source to all parties involved in infant feeding.

Biological Properties and Transmission Modes of SARS-CoV-2

The SARS-CoV-2, which belongs to coronavirus family, is a spherical, lipid-enveloped, and single-stranded RNA virus.[12] SARS-CoV-2 shares 79% sequence identity to SARS-CoV-1, the causative agent for SARS and utilizes the same angiotensin-converting enzyme 2 (ACE2) receptor for cell entry.[13] Heat, washing with soap for 20 seconds, 60% alcohol, and commercial and household cleaning products inactivate SARS-CoV-1 and Middle Eastern respiratory syndrome (MERS) viruses[14] [15] and are presumed to have similar effect on SARS-CoV-2.

The incubation period of SARS-CoV-2 infection is on average 5 to 6 days, and can last up to 14 days.[9] Some infected persons can be contagious, from 1 to 3 days before symptom onset in the “presymptomatic” period.[16] The mainstay of transmission of SARS-CoV-2 is by symptomatic people to others through respiratory droplets, by direct contact with infected persons, or by contact with contaminated objects and surfaces.[9] However, active viral replication drops quickly after the first week and viral particles detected after 11 days of illness may be (or likely to be) no longer viable.[17] This is consistent with WHO recommendations that symptomatic patients are discontinued from transmission-based precautions 10 days after symptom onset plus at least 3 days without fever and respiratory symptoms, and asymptomatic patients can be deisolated 10 days after testing positive.[9]

There is an ongoing debate regarding the definition and risks of congenital versus intrapartum transmission. Various investigators have tested for presence of SARS-CoV-2 in cord blood, placenta, and neonatal nasopharyngeal swabs at birth, 24 hours, and day 2 onwards to differentiate between congenital and intrapartum transmission.[18] [20] A recent probable congenital COVID-19 case was reported, with the widespread presence of virus on placenta, newborn's nasopharyngeal aspirates, blood, and stool[19] in a mother with familial neutropenia, gestational diabetes, and a history of frequent bacterial infections. Evidence so far has shown the risk of vertical transmission is low. We recently reported a pooled incidence of SARS-CoV-2 vertical transmission rate of 16 per 1,000 newborns (95% confidence interval [CI]: 3.40–73.11).[21]

However, with uncertainties in the natural history of neonates with COVID-19, newborns born to COVID-19-positive mothers considered persons under investigation (PUI) for infection, or if infection status cannot be determined, are to be placed under surveillance for at least 14 days with infection precautions.[5]

In COVID-19-positive mothers who breastfed, a few newborns subsequently tested positive for SARS-CoV-2 after mothers had skin-to-skin contact and breastfed without face masks.[22] [23] [24] It is imperative to adopt infection control measures (e.g., wearing facemask and hand hygiene) during breastfeeding. There is, however, one reported case of a neonate acquiring COVID-19 despite the mother breastfeeding with a face mask.[25]

Transmission of SARS-CoV-2 via human milk is unlikely. Only three authors have reported SARS-CoV-2 in human milk,[19] [25] [26] while larger studies did not.[27] [28] [29] Viability of the SARS-CoV-2 in human milk has not been demonstrated. Additionally, if viable SARS-CoV-2 were present in human milk, temperatures near those used in Holder pasteurization (62.5°C for 30 minutes) have been found to inactivate the virus.[30] This would allay the fears about safety of donor human milk from milk banks. Paradoxically, pasteurization is believed to be counterproductive as it would inactivate other immunological properties of milk that might protect the neonates from SARS-CoV-2 and other pathogens.[31]

Despite absence of direct evidence, there is a speculation that the presence of maternal SARS-CoV-2 immunoglobulin (Ig)-G in newborn blood and other Ig in mother's milk protected a 15-day-old breastfeeding infant from symptomatic SARS-CoV-2 infection.[25] During the SARS epidemic in 2003, a mother infected with SARS-CoV-1 at 19 weeks of gestation had antibodies against the virus in her milk.[32] High levels of Influenza IgA and neutralizing antibodies were present in human milk following influenza vaccination in pregnant women.[33] The maximum time taken for Ig to appear in human milk is around 38 days after the onset of influenza infection.[34] In addition to potential specific antibodies, human milk also contains other immune boosting factors (e.g., probiotics, white blood cells, and lactoferrin) for health benefits of the breastfed neonates.[35]

Guidelines for Breastfeeding in COVID-19

In general, published guidelines for breastfeeding mirror those for maternal influenza infection,[36] which encourage breastfeeding, while the mother adopts infection control precautions. This is the position taken by the WHO[9] and many national health authorities with few exceptions.[2] [3] The WHO concluded that mothers with suspected or confirmed COVID-19 should not be separated from their infants, therefore skin-to-skin contact and breastfeeding should be initiated from birth while taking precautions to avoid spreading virus to her infant, primarily through contact with mother's infectious respiratory secretions. The WHO's recommendations on Infection Prevention and Control (IPC) are that mothers with suspected, probable, or confirmed COVID-19 should be counseled about droplet and contact precautions during contact with their infant, which are summarized in [Table 2].

Table 2 Infection prevention and control practices for breastfeeding and infant feeding in COVID-19

Scenarios	Recommendations
Mother infant contact at birth	●Mother should not be separated from her infant unless she is too sick to care for her infant (WHO, 2020)  ●Enable rooming in and early skin-to-skin contact (WHO, 2020)  ●Breastfeed within 1 hour of birth with appropriate Infection Prevention and Control (IPC) practices (WHO, 2020)
Direct breastfeeding	●Mothers are to wear face masks and perform respiratory hygiene (cough/sneeze into tissue and dispose, then perform hand hygiene immediately; WHO, 2020)  ●Wash hands before contact with infant, before and after each feeding (WHO, 2020)  ●Clean chest with soap and water if coughing on it before breastfeeding (WHO, 2020)  ●Clean and disinfect surfaces which the mother has been in contact with (WHO, 2020)  ●Avoid coughing or sneezing on the infant while feeding (Royal College of Obstetricians and Gynaecologists, 2020)
Expression of human milk	●Mother encouraged and supported to express milk with appropriate IPC measures (WHO, 2020)  ●Provide dedicated breast pump (Academy of Breastfeeding Medicine, 2020; CDC, 2020)  ●Mothers to wear masks during the process (Marinelli & Lawrence, 2020; WHO, 2020)  ●Wash hands before touching pump or bottle parts and before expressing human milk (Academy of Breastfeeding Medicine, 2020; CDC, 2020)  ●Follow recommendations for proper pump cleaning before or after each use (Academy of Breastfeeding Medicine, 2020; CDC, 2020)
Feeding of expressed human milk	●Handle human milk containers with gloves (Marinelli and Lawrence, 2020)  ●Consider disinfecting expressed human milk containers with virucidal agents (CDC, 2020; Marinelli and Lawrence, 2020)  ●If possible, have someone well to feed expressed human milk to infant (CDC, 2020)
Alternative milk if mother's milk is not available	●Donor human milk as first choice (WHO, 2020)  ●Wet nursing, appropriate human milk substitutes as alternatives (WHO, 2020)

Abbreviations: ABM, Academy of Breastfeeding Medicine; CDC, Centres for Disease Control and Prevention; COVID-19, novel coronavirus disease 2019; WHO, World Health Organization.

Centers for Disease Control and Prevention (CDC)[10] and American Academy of Pediatrics (AAP),[5] in general, advise a more conservative approach by recommending temporary mother–baby separation to minimize risk of postnatal transmission from maternal respiratory secretions and providing expressed human milk fed by a healthy caregiver. However, WHO advices this practice only when mother is too ill to care for her infant. In addition, due to evidence that SARS-CoV-2 remains viable on surfaces for hours to days,[15] [37] if expressed human milk is to be fed, disinfection of the external surfaces of milk containers may be considered[10] [38] to prevent virus transmission to the caregiver or HCP.

The third and the most restrictive approach is taken in China where breastfeeding is still prohibited until mother is confirmed to be SARS-CoV-2 negative.[2]

Three Options for Infant Feeding

We constructed three options ([Table 1]) with three principles in mind: (1) benefits of breastfeeding balanced against the risk of transmission of SARS-CoV-2 to infant, (2) disadvantages and advantages to be made known to mother and HCP, and (3) mother and HCP need support and guidance to execute the option that they prefer.

In all three options, a joint decision is made by HCP and parents. Some factors to consider include the clinical condition of mother and infant, viral test results of mother and infant, mother's preference about breastfeeding and the availability of facility and resources for isolation.[39] Lactation support needs to be available for mother whether she chooses to or not to breastfeed to preserve continued lactation. A major focus needs to be in instructing and counseling mother on IPC measures to avoid spreading the virus to her infant (hand hygiene, breast hygiene, proper use of face masks, hygienic measures to express milk, etc.) which is also practiced by HCP as shown in [Table 2].

We conclude, based on factors outlined above, option A is the most preferred option that can be implemented safely in most situations involving COVID-19 pregnancies. Options B and C, if implemented for the wrong reasons, will add unnecessary strain to the health care organization and may jeopardize success of breastfeeding. These options proposed herein are not fixed once a decision is made and can be altered and adapted when situation changes. It is important to protect breastfeeding as advocated in baby friendly hospital practices[7] and to limit interruptions to general care of mother and baby during the COVID-19 pandemic.

Counseling Mothers with COVID-19 Infection for Breastfeeding

Successful execution of option-based strategy requires proper guidance, counseling, and breastfeeding education to the mother. The following steps are based on established counseling principles for breastfeeding with necessary modifications applied to COVID-19.[40] [41] [42] [43] The processes below refer to the mother, but this approach can be modified to include her partner.

Counseling may be done through teleconversation, videoconference, or face-to-face encounter with personal protective equipment (PPE) precautions. The first meeting is ideally done before baby's birth, once mother has been diagnosed with COVID-19. However, with the widespread range of COVID-19 presentations, HCP may be confronted with various scenarios, ranging from a mother with confirmed, probable, suspect, presymptomatic infection or an asymptomatic carrier. There is even an emerging proposal for routine screening of obstetric patients admitted for labor, regardless of maternal symptomatology.[44] HCP should discuss with the mother options available to her, with an appropriate visual aid ([Fig. 1]) for her reference.

Fig. 1 Infographic for counseling a mother with COVID-19 on breastfeeding. COVID-19, novel coronavirus disease 2019; HCP, health care provider.

The counseling process involves the following five stages: (1) establishing a rapport, (2) gathering information, (3) defining the problem, (4) discussing possible solutions and (5) closing the contact by summarizing the decision making and possible follow-ups.

Establishing a Rapport

HCP first needs to establish a rapport with the mother to gain her trust. Acknowledge that the mother may have usual concerns of a new parent, and with added anxiety and fear about COVID-19. Carefully crafted questions (e.g., “You must be worried that you are diagnosed with COVID-19. What concerns you the most?”) need to be asked with due sensitivity to clarify her situation and state of mind.

Gathering Information

In the course of information gathering, HCP should remain supportive and start with open-ended questions before moving on to specific clarification questions. HCP may ask about mother's prior experience in breastfeeding and expectations, then proceed to specific COVID-19 questions: history of exposure, current state of illness, results of swab tests, knowledge about COVID-19, and breastfeeding, and similar history for other household members. As these questions could be stressful to the mother, HCP should try to reframe the situation to help the mother see a negative (or abnormal) experience in a more positive (or normal) light. For example, the mother might say that it would be difficult to resume breastfeeding once she recovers from COVID-19. HCP could reframe the situation by saying that she can start breastfeeding after her recovery; meanwhile, she should preserve her milk supply by expressing.

Defining the Problem and Discussing Solutions

The problem needs to be defined before a solution can be reached. Both HCP and the mother should agree on what the problem is. For example: “you have told me that you do not know whether to breastfeed in the light of COVID-19. Let me provide you with three different options with pros and cons of each option, so that we can reach a common understanding.” HCP should patiently explain the preparation the mother needs to arrange for each option and provide her with necessary guidance and support. HCP should advocate option A as the most pragmatic and baby friendly approach while providing options B and C as alternatives in specific situations.

Closing the Contact

HCP should close the contact by affirming and adhering to the mother's decision regarding her infant's feeding. HCP should emphasize that current information indicates that breastfeeding in COVID-19 is safe and beneficial to her infant, and yet new evidence may emerge in the future. HCP should guide the mother to credible sources of information, such as WHO, CDC, and national guidelines. HCP should set a specific date to revisit the mother and provide her with updated information and answer her queries.

Training HCP on Breastfeeding in COVID-19 Mothers

All levels of HCP involved in infant care and breastfeeding support need to have foundational knowledge in COVID-19 and breastfeeding. They need to be oriented to the various options ([Table 1]) available to the mother with pros and cons of each option. A smaller group of HCP should be prepared to do more in-depth counseling. Training modules may be planned as videoconferencing session in light of COVID-19 pandemic restrictions on group gatherings. We propose a 4-hour training course on breastfeeding in COVID-19 ([Table 3]).

Table 3 Proposed training program for HCP on breastfeeding in COVID-19 mothers

Domain	Content	Instructional methods	Duration
Knowledge	COVID-19 and breastfeeding  General principles of counseling  Options for infant feeding in COVID-19	Didactic (online)	1.5 hour
Skills	Personal protection  PPE  Safe handling of human milk  Videoconferencing techniques	Demonstration and practice	1 hour
Skills and attitude	Counseling COVID-19 mothers on Infection Prevention and Control Practice  Counseling on breastfeeding and infant feeding options	Role play Feedback	1.5 hour

Abbreviations: COVID-19, novel coronavirus disease 2019; HCP, health care providers; PPE, personal protective equipment.

Future Research Questions

In the presence of uncertainties and limited knowledge in COVID-19, there is an obligation to conduct research and generate answers to aid prudent decision making.[45] Acknowledging that randomized control trial (RCT) is the “gold standard” in scientific enquiry in medicine, the need for actionable knowledge is so acute that now it is indefensible for the health care community to wait for RCT results before taking actions. Hence, there is an urgency and ethical responsibility to start research with potential to change practice. Therefore, we propose the following framework of research based on priorities ([Table 4]).

Table 4 Framework for breastfeeding research in COVID-19

Priority	Possible study design	Examples of clinical questions
Immediate	Observational	●Does early skin-to-skin contact result in virus transmission from mother to her infant?  ●Does home pasteurization of human milk inactivate SARS-CoV-2?  ●Does human milk contain viable SARS-CoV-2?  ●What is the psychological effect of separation of mother and her infant following COVID-19 births?
Intermediate	Cohort Pilot trials	●What are outcomes of infants born via caesarean and vaginal births in COVID-19 pregnancies?  ●What is the long-term psychological impact of COVID-19 on pregnant and breastfeeding mothers?  ●What are the effects of antiviral drugs on breastfeeding? Are these drugs present in human milk?  ●What are the outcomes of infants born to COVID-19 mothers who are breastfed and not breastfed?
Long term	Randomized control trials Proof of concept	●What interventions (e.g., options proposed in this article) lead to better breastfeeding rate or other outcomes?

Abbreviations: COVID-19, novel coronavirus disease 2019; SARS-CoV-2, severe acute respiratory syndrome-coronavirus-2.

Immediate researches are need based and have direct and immediate implications on patient care. Examples include observational studies using existing resources and manpower, which can be done quickly, and without much interference from bureaucracy.

Intermediate priority research should be planned in the next 6 to 8 months to conduct cohort-based studies or small-scale pilot trials. Examples of such research include assessing the effect of near universal recommendation for caesarean section deliveries in China following COVID-19 pregnancies, and psychological wellbeing of mother and infant following prolonged separation after birth.

Long-term research agenda requires meticulous planning, a larger budget, and more resources. These include RCT to evaluate interventions either at individual level or at community/hospital level, which would take 12 to 24 months of lead time and a further 2 to 3 years for data analysis and publication.

Conclusion

Our current knowledge and evidence about COVID-19 and breastfeeding is limited and evolving fast. Many health authorities have overwhelmingly recommended breastfeeding with added infection control precautions, while others are more restrictive. We propose an optimal safe and mother-and-child friendly practice for breastfeeding, with two other options based on various situations and through a shared decision with parents. This approach is flexible and nonprescriptive, incorporating counseling of parents using visual aids and training of HCP. We suggest a framework for future breastfeeding research in COVID-19 to obtain answers for better decision making.

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