Duty to Warn in a Time of Plague

The manager of a building is contacted by a tenant asking that a package be delivered to their apartment door. The tenant advises that they have a respiratory illness that appears to be Covid 19. What is the obligation of the manager? Do they have a duty to accommodate and assist the tenant as to deliveries of food and medicine? Do they have a duty to warn other tenants? Should they "quarantine" that particular apartment? Should they eject the tenant from the building? What if the tenant calls with an emergency plumbing problem - do you send a worker to do the repairs?

מתני׳ ואלו הן שמצילין אותן בנפשן הרודף אחר חבירו להרגו ואחר הזכר ואחר הנערה המאורסה אבל הרודף אחר בהמה והמחלל את השבת ועובד עבודת כוכבים אין מצילין אותן בנפשן: גמ׳ ת"ר מניין לרודף אחר חבירו להרגו שניתן להצילו בנפשו ת"ל (ויקרא יט, טז) לא תעמוד על דם רעך והא להכי הוא דאתא האי מיבעי ליה לכדתניא מניין לרואה את חבירו שהוא טובע בנהר או חיה גוררתו או לסטין באין עליו שהוא חייב להצילו ת"ל לא תעמוד על דם רעך אין ה"נ ואלא ניתן להצילו בנפשו מנלן אתיא בקל וחומר מנערה המאורסה מה נערה המאורסה שלא בא אלא לפוגמה אמרה תורה ניתן להצילה בנפשו רודף אחר חבירו להרגו על אחת כמה וכמה וכי עונשין מן הדין דבי רבי תנא הקישא הוא (דברים כב, כו) כי כאשר יקום איש על רעהו ורצחו נפש וכי מה למדנו מרוצח מעתה הרי זה בא ללמד ונמצא למד מקיש רוצח לנערה המאורסה מה נערה המאורסה ניתן להצילה בנפשו אף רוצח ניתן להצילו בנפשו ונערה מאורסה גופה מנלן כדתנא דבי ר' ישמעאל דתנא דבי רבי ישמעאל (דברים כב, כז) ואין מושיע לה הא יש מושיע לה בכל דבר שיכול להושיע גופא מניין לרואה את חברו שהוא טובע בנהר או חיה גוררתו או לסטין באין עליו שהוא חייב להצילו ת"ל לא תעמוד על דם רעך והא מהכא נפקא מהתם נפקא אבדת גופו מניין ת"ל והשבותו לו אי מהתם הוה אמינא ה"מ בנפשיה אבל מיטרח ומיגר אגורי אימא לא קמ"ל

MISHNA: And these are the ones who are saved from transgressing even at the cost of their lives; that is to say, these people may be killed so that they do not perform a transgression: One who pursues another to kill him, or pursues a male to sodomize him, or pursues a betrothed young woman to rape her. But with regard to one who pursues an animal to sodomize it, or one who seeks to desecrate Shabbat, or one who is going to engage in idol worship, they are not saved at the cost of their lives. Rather, they are forewarned not to transgress, and if they proceed to transgress after having been forewarned, they are brought to trial, and if they are found guilty, they are executed. GEMARA: The Sages taught in a baraita: From where is it derived that with regard to one who pursues another in order to kill him, the pursued party may be saved at the cost of the pursuer’s life? The verse states: “You shall not stand idly by the blood of another” (Leviticus 19:16); rather, you must save him from death. The Gemara asks: But does this verse really come to teach us this? This verse is required for that which is taught in a baraita: From where is it derived that one who sees another drowning in a river, or being dragged away by a wild animal, or being attacked by bandits [listin], is obligated to save him? The Torah states: “You shall not stand idly by the blood of another.” The Gemara answers: Yes, it is indeed so that this verse relates to the obligation to save one whose life is in danger. The Gemara asks again: But from where do we derive that one may be saved at the cost of the pursuer’s life? The Gemara answers: It is derived by means of an a fortiori inference from the halakha governing a betrothed young woman who was assaulted by a rapist: If in the case of a betrothed young woman, whom the rapist comes only to degrade, i.e., the result of the rape will be that her status is lowered, the Torah said that she may be saved even at the cost of the rapist’s life, then in the case of one who pursues another person to kill him, all the more so should one say that he may be saved even at the cost of the pursuer’s life. The Gemara asks: But does the court administer punishment based on an a fortiori inference? The Gemara answers: A Sage of the school of Rabbi Yehuda HaNasi taught: This halakha is also derived from an analogy based on a juxtaposition. How so? With regard to the rape of a betrothed young woman it is written: “But you shall do nothing to the young woman; the young woman has committed no sin worthy of death; for as when a man rises against his neighbor, and slays him, so too with this matter” (Deuteronomy 22:26). But why would the verse mention murder in this context? But what do we learn here from a murderer? Now, the mention of murder came in order to teach a halakha about the betrothed young woman, and it turns out that, in addition, it derives a halakha from that case. The Torah juxtaposes the case of a murderer to the case of a betrothed young woman to indicate that just as in the case of a betrothed young woman one may save her at the cost of the rapist’s life, so too, in the case of a murderer, one may save the potential victim at the cost of the murderer’s life. The Gemara asks: And with regard to the betrothed young woman herself, from where do we derive that she may be saved at the cost of the rapist’s life? The Gemara explains: As it was taught in the school of Rabbi Yishmael: The verse states: “For he found her in the field, and the betrothed young woman cried out, and there was none to save her” (Deuteronomy 22:27). But if there was someone to save her, he must do so by any means that can save her, even by killing the potential rapist. Concerning the matter itself, it is taught in a baraita: From where is it derived that one who sees another drowning in a river, or being dragged away by a wild animal, or being attacked by bandits, is obligated to save him? The verse states: “You shall not stand idly by the blood of another” (Leviticus 19:16). The Gemara asks about this derivation: But is this really derived from here? It is derived from there, i.e., from a different verse, as it is taught: The Torah teaches that one must return lost property to its rightful owner. But from where is it derived that one must help his neighbor who may suffer the loss of his body or his health? The verse states: “And you shall restore it [vahashevato] to him [lo]” (Deuteronomy 22:2), which can also be read as: And you shall restore him [vehashevato] to him, i.e., saving his body. Consequently, there should be no need for the additional verse: “You shall not stand idly by the blood of another.” The Gemara answers: If this halakha were derived only from there, I would say that this matter applies only to saving the person in danger by himself, i.e., that he himself must come to his neighbor’s rescue if he can, as is the halakha with regard to returning a lost item. But to trouble himself and hire workers for this purpose, one might say that he is not obligated, just as he is not obligated to hire workers to recover another’s lost item. Therefore, the verse “Do not stand by the blood of another” teaches us that he must even hire workers, and he transgresses a prohibition if he does not do so.

(כו) וַיֹּאמֶר֩ אִם־שָׁמ֨וֹעַ תִּשְׁמַ֜ע לְק֣וֹל ׀ יְהוָ֣ה אֱלֹהֶ֗יךָ וְהַיָּשָׁ֤ר בְּעֵינָיו֙ תַּעֲשֶׂ֔ה וְהַֽאֲזַנְתָּ֙ לְמִצְוֺתָ֔יו וְשָׁמַרְתָּ֖ כָּל־חֻקָּ֑יו כָּֽל־הַמַּֽחֲלָ֞ה אֲשֶׁר־שַׂ֤מְתִּי בְמִצְרַ֙יִם֙ לֹא־אָשִׂ֣ים עָלֶ֔יךָ כִּ֛י אֲנִ֥י יְהוָ֖ה רֹפְאֶֽךָ׃ (ס)
(26) He said, “If you will heed the LORD your God diligently, doing what is upright in His sight, giving ear to His commandments and keeping all His laws, then I will not bring upon you any of the diseases that I brought upon the Egyptians, for I the LORD am your healer.”
(כב) כִּי֩ אִם־שָׁמֹ֨ר תִּשְׁמְר֜וּן אֶת־כָּל־הַמִּצְוָ֣ה הַזֹּ֗את אֲשֶׁ֧ר אָנֹכִ֛י מְצַוֶּ֥ה אֶתְכֶ֖ם לַעֲשֹׂתָ֑הּ לְאַהֲבָ֞ה אֶת־יְהוָ֧ה אֱלֹהֵיכֶ֛ם לָלֶ֥כֶת בְּכָל־דְּרָכָ֖יו וּלְדָבְקָה־בֽוֹ׃
(22) If, then, you faithfully keep all this Instruction that I command you, loving the LORD your God, walking in all His ways, and holding fast to Him,
(טו) לֹא־תַעֲשׂ֥וּ עָ֙וֶל֙ בַּמִּשְׁפָּ֔ט לֹא־תִשָּׂ֣א פְנֵי־דָ֔ל וְלֹ֥א תֶהְדַּ֖ר פְּנֵ֣י גָד֑וֹל בְּצֶ֖דֶק תִּשְׁפֹּ֥ט עֲמִיתֶֽךָ׃ (טז) לֹא־תֵלֵ֤ךְ רָכִיל֙ בְּעַמֶּ֔יךָ לֹ֥א תַעֲמֹ֖ד עַל־דַּ֣ם רֵעֶ֑ךָ אֲנִ֖י יְהוָֽה׃

(15) You shall not render an unfair decision: do not favor the poor or show deference to the rich; judge your kinsman fairly. (16) Do not deal barely (gossip) with your countrymen. Do not stand idly by the blood of your fellow: I am the LORD.

The Chofetz Chaim, in Hilchot Lashon Harah, the authoritative work on the matter of forbidden and permitted speech wrote on the importance of not engaging in gossip, rechilut being non-deragatory and lashon harah being harmful. On the topic of overriding confidentiality where the information involves a threat to a second person:

1. One must be relatively sure that the information will result in harm to the second person.

2. One must tell the facts exactly as they are and not embellish at all.

3. One can only reveal this information if there is no other possible way to prevent harm to the second person.

4. One can only reveal this information if he is fairly certain that this second person will heed the information seriously and take the necessary precautions.

(ט) רַ֡ק הִשָּׁ֣מֶר לְךָ֩ וּשְׁמֹ֨ר נַפְשְׁךָ֜ מְאֹ֗ד פֶּן־תִּשְׁכַּ֨ח אֶת־הַדְּבָרִ֜ים אֲשֶׁר־רָא֣וּ עֵינֶ֗יךָ וּפֶן־יָס֙וּרוּ֙ מִלְּבָ֣בְךָ֔ כֹּ֖ל יְמֵ֣י חַיֶּ֑יךָ וְהוֹדַעְתָּ֥ם לְבָנֶ֖יךָ וְלִבְנֵ֥י בָנֶֽיךָ׃
(9) But take utmost care and watch yourselves scrupulously, so that you do not forget the things that you saw with your own eyes and so that they do not fade from your mind as long as you live. And make them known to your children and to your children’s children:
(טו) וְנִשְׁמַרְתֶּ֥ם מְאֹ֖ד לְנַפְשֹׁתֵיכֶ֑ם כִּ֣י לֹ֤א רְאִיתֶם֙ כָּל־תְּמוּנָ֔ה בְּי֗וֹם דִּבֶּ֨ר יְהוָ֧ה אֲלֵיכֶ֛ם בְּחֹרֵ֖ב מִתּ֥וֹךְ הָאֵֽשׁ׃
(15) For your own sake, therefore, be most careful—since you saw no shape when the LORD your God spoke to you at Horeb out of the fire—
(ח) כִּ֤י תִבְנֶה֙ בַּ֣יִת חָדָ֔שׁ וְעָשִׂ֥יתָ מַעֲקֶ֖ה לְגַגֶּ֑ךָ וְלֹֽא־תָשִׂ֤ים דָּמִים֙ בְּבֵיתֶ֔ךָ כִּֽי־יִפֹּ֥ל הַנֹּפֵ֖ל מִמֶּֽנּוּ׃ (ס)
(8) When you build a new house, you shall make a parapet for your roof, so that you do not bring bloodguilt on your house if anyone should fall from it.
רב ורבי חנינא ורבי יוחנן ורב חביבא מתנו בכוליה דסדר מועד כל כי האי זוגא חלופי רבי יוחנן ומעייל רבי יונתן כל מי שאפשר למחות לאנשי ביתו ולא מיחה נתפס על אנשי ביתו באנשי עירו נתפס על אנשי עירו בכל העולם כולו נתפס על כל העולם כולו
It was related that Rav, and Rabbi Ḥanina, and Rabbi Yoḥanan, and Rav Ḥaviva taught the statement cited below. The Gemara comments: Throughout the order of Moed, wherever this pair of Sages is mentioned, exchange Rabbi Yoḥanan and insert Rabbi Yonatan in his place. In any event, they said: Anyone who had the capability to effectively protest the sinful conduct of the members of his household and did not protest, he himself is apprehended for the sins of the members of his household and punished. If he is in a position to protest the sinful conduct of the people of his town, and he fails to do so, he is apprehended for the sins of the people of his town. If he is in a position to protest the sinful conduct of the whole world, and he fails to do so, he is apprehended for the sins of the whole world.
(א) וַיְדַבֵּ֥ר יְהוָ֖ה אֶל־מֹשֶׁ֥ה לֵּאמֹֽר׃ (ב) צַ֚ו אֶת־בְּנֵ֣י יִשְׂרָאֵ֔ל וִֽישַׁלְּחוּ֙ מִן־הַֽמַּחֲנֶ֔ה כָּל־צָר֖וּעַ וְכָל־זָ֑ב וְכֹ֖ל טָמֵ֥א לָנָֽפֶשׁ׃ (ג) מִזָּכָ֤ר עַד־נְקֵבָה֙ תְּשַׁלֵּ֔חוּ אֶל־מִח֥וּץ לַֽמַּחֲנֶ֖ה תְּשַׁלְּח֑וּם וְלֹ֤א יְטַמְּאוּ֙ אֶת־מַ֣חֲנֵיהֶ֔ם אֲשֶׁ֥ר אֲנִ֖י שֹׁכֵ֥ן בְּתוֹכָֽם׃ (ד) וַיַּֽעֲשׂוּ־כֵן֙ בְּנֵ֣י יִשְׂרָאֵ֔ל וַיְשַׁלְּח֣וּ אוֹתָ֔ם אֶל־מִח֖וּץ לַֽמַּחֲנֶ֑ה כַּאֲשֶׁ֨ר דִּבֶּ֤ר יְהוָה֙ אֶל־מֹשֶׁ֔ה כֵּ֥ן עָשׂ֖וּ בְּנֵ֥י יִשְׂרָאֵֽל׃ (פ)
(1) The LORD spoke to Moses, saying: (2) Instruct the Israelites to remove from camp anyone with an eruption or a discharge and anyone defiled by a corpse. (3) Remove male and female alike; put them outside the camp so that they do not defile the camp of those in whose midst I dwell. (4) The Israelites did so, putting them outside the camp; as the LORD had spoken to Moses, so the Israelites did.
(יג) וְיָד֙ תִּהְיֶ֣ה לְךָ֔ מִח֖וּץ לַֽמַּחֲנֶ֑ה וְיָצָ֥אתָ שָׁ֖מָּה חֽוּץ׃ (יד) וְיָתֵ֛ד תִּהְיֶ֥ה לְךָ֖ עַל־אֲזֵנֶ֑ךָ וְהָיָה֙ בְּשִׁבְתְּךָ֣ ח֔וּץ וְחָפַרְתָּ֣ה בָ֔הּ וְשַׁבְתָּ֖ וְכִסִּ֥יתָ אֶת־צֵאָתֶֽךָ׃ (טו) כִּי֩ יְהוָ֨ה אֱלֹהֶ֜יךָ מִתְהַלֵּ֣ךְ ׀ בְּקֶ֣רֶב מַחֲנֶ֗ךָ לְהַצִּֽילְךָ֙ וְלָתֵ֤ת אֹיְבֶ֙יךָ֙ לְפָנֶ֔יךָ וְהָיָ֥ה מַחֲנֶ֖יךָ קָד֑וֹשׁ וְלֹֽא־יִרְאֶ֤ה בְךָ֙ עֶרְוַ֣ת דָּבָ֔ר וְשָׁ֖ב מֵאַחֲרֶֽיךָ׃ (ס)
(13) Further, there shall be an area for you outside the camp, where you may relieve yourself. (14) With your gear you shall have a spike, and when you have squatted you shall dig a hole with it and cover up your excrement. (15) Since the LORD your God moves about in your camp to protect you and to deliver your enemies to you, let your camp be holy; let Him not find anything unseemly among you and turn away from you.